united states history

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8 inch barbette in battery - Public domain architectural plan drawing

8 inch barbette in battery - Public domain architectural plan drawing

Photograph of mechanical drawing showing cannon and barbette. In album: Benjamin Brown French "Photographs," p. 109. Reference copy in LOT 12251, v. 2. Original in PR 12 LOT 12251.

Siege of Yorktown, Virginia Federal Battery No. 4 mounting ten 13 inch mortars

Siege of Yorktown, Virginia Federal Battery No. 4 mounting ten 13 inch...

No. 4178. Illus. in: E468.7 .G2, Gardner's photographic sketch book of the war / Alexander Gardner. Washington, [D.C.]: Philp & Solomons, [1865-66], v. 1, no. 14. Hand written on verso: Miller, vol. V, p. 23. ... More

13 inch mortar "Dictator" in front of Petersburg, Virginia (Andrew J. Russel)

13 inch mortar "Dictator" in front of Petersburg, Virginia (Andrew J. ...

No. B269. Hand written on mount: National Archive has original neg. Information taken from record for another version of photograph in oval format, LOT 11486-C, no. 14. Forms part of: Civil War Photographs (An... More

13 inch mortar "Dictator" in front of Petersburg, Virginia

13 inch mortar "Dictator" in front of Petersburg, Virginia

Photograph shows Union officers and enlisted men standing around a large mortar on a platform on a flatbed railroad car near Petersburg, Virginia. No. 4794. Handwritten on back of mount: Gardner's photographic... More

[Battery No. 4 near Yorktown mounting ten 13 inch mortars each weighing 20,000 pounds. South end]

[Battery No. 4 near Yorktown mounting ten 13 inch mortars each weighin...

Photograph shows soldiers standing at cannons. Title and date from catalog record for associated negative: LC-B811-375.

Breech of 8 inch gun and crew - Public domain image. Dry plate negative.

Breech of 8 inch gun and crew - Public domain image. Dry plate negativ...

Picryl description: Public domain image of a navy artillery gun, cannon, ship weapon, free to use, no copyright restrictions.

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROUND

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROU...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. BORING BREECH OF 14 INCH GUN

NAVY YARD, U.S., WASHINGTON. BORING BREECH OF 14 INCH GUN

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINKING JACKET ON IT

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINK...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINKING JACKET ON IT

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINK...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 50 CAL. GUN

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 5...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 50 CAL. GUN

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 5...

Picryl description: Public domain image of an artillery gun, cannon, weapon, free to use, no copyright restrictions.

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 50 CAL. GUN

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 5...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROUND

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROU...

Picryl description: Public domain image of an artillery gun, cannon, weapon, free to use, no copyright restrictions.

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINKING JACKET ON IT

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINK...

Public domain historic photograph of Washington DC, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. BORING BREECH OF 14 INCH GUN

NAVY YARD, U.S., WASHINGTON. BORING BREECH OF 14 INCH GUN

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 50 CAL. GUN

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 5...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 50 CAL. GUN

NAVY YARD, U.S., WASHINGTON. TURNING, EXAMINING AND BORING A 5 INCH, 5...

Picryl description: Public domain image of an artillery gun, cannon, weapon, free to use, no copyright restrictions.

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROUND

NAVY YARD, U.S., WASHINGTON. 14 INCH GUNS, READY TO GO TO PROVING GROU...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINKING JACKET ON IT

NAVY YARD, U.S., WASHINGTON. 14 INCH GUN; VARIOUS OPERATIONS IN SHRINK...

Public domain photograph of industrial building, factory, free to use, no copyright restrictions image - Picryl description

Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D.C.], 8/18/24

Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D.C.], 8/18/24

Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D...

Public domain photograph, 1910s-1920s portrait, American, free to use, no copyright restrictions image - Picryl description

Studies little mollusca. Dr. Paul Bartsch of the National Museum studies mollusk specimens from the Mississippi river in connection with experiments being conducted by the Bureau of Fisheries. These shellfish are little fellows in their infancy. One of the tubes held by Dr. Bartsch holds 1,265,920 specimens, taking up three-fourths of a cubic inch of space, while the other contains 568,000 specimens. 12/22/30

Studies little mollusca. Dr. Paul Bartsch of the National Museum studi...

A black and white photo of a man sitting at a bar. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Employee housing. Interior typical of houses at Norris. Floor is of third-grade tongue-and-groove oak which is produced locally. Walls are 7/8 inch tongue-and-groove pine to the window sill level and large sheets of quarter- inch thick fir plywood above. Ceilings are of insulating board. Windows are steel with aluminum screens. Houses are electrically heated; hot water and heating equipment are likewise electrical

Employee housing. Interior typical of houses at Norris. Floor is of th...

Public domain photograph of living room, free to use, no copyright restrictions image - Picryl description

Visitors' buildings. Another view of one of twin overlook buildings shown on K 1986. Structures are lightweight because they were placed on a relatively recent fill. Walls and partitions are of three inch by three inch studs, steel were exposed and wood otherwise, covered by asbestos panels on a modular spacing. Window, door, and solid panels are interchangeable

Visitors' buildings. Another view of one of twin overlook buildings sh...

Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.

Scotch machine, Washington, D.C., September 8. This machine, exhibited at the World Power Conference which is being held here, is devised so as to use every inch of matter contained in coal. The coal is put in the rettort and heated to a temperature of 1832 degrees. From the smoke and gas, Tar, Ammonium Sulphite, sulphur, light oils and gas are derived and from the tar, medicines, aromatic oils, perfumes, dyes, and acids are derived. From the light oils, motor fuel is obtained. In short: this machine wastes nothing at all

Scotch machine, Washington, D.C., September 8. This machine, exhibited...

Public domain photograph of Washington DC, free to use, no copyright restrictions image - Picryl description

Scotch machine, Washington, D.C., September 8. This machine, exhibited at the World Power Conference which is being held here, is devised so as to use every inch of matter contained in coal. The coal is put in the retort and heated to a temperature of 1832 degrees. From the smoke and gas, Tar, Ammonium Sulphite, sulphur, light oils and gas are derived and from the tar, medicines, aromatic oils, perfumes, dyes, and acids are derived. From the light oils, motor fuel is obtained. In short: this machine wastes nothing at all

Scotch machine, Washington, D.C., September 8. This machine, exhibited...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

William Browner, Ast. Astronomer at the Naval Obs. looking thru 25 inch reflectuary teles.

William Browner, Ast. Astronomer at the Naval Obs. looking thru 25 inc...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Flame propogation in gas engines photographed. Washington, D.C., Aug. 26. A study of the mechanism of the flame propogation in the cylinder of a internal combustion engine is being made at the U.S. Bureau of Standards for the National Advisory Committee for Aeronautics. A secial bomb made of steel, shown in the foreground, and designed to withstand pressures up to 500 lbs. to the square inch is used to show the progress of the flame and the rise in pressure which may be recorded photographically during the gas explosions under carefully controlled conditions. The camera, where the recordings are made, is in front of Dr. Ernest F. Flock of the Bureau of Standards, carries its film on a drum which may be revolved up to 4,000 revolutions per minute, this camera also records a neon light flashing at a thousandth of a second. The independent effects of pressure, temperature and charge composition upon flame speed and explosion ratio may be made with this equipment, 8/26/37

Flame propogation in gas engines photographed. Washington, D.C., Aug. ...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Interferometer tests standard gages for automobile manufacturers. Washington, D.C. May 28. I.J. Fullmer of the Bureau of Standards is shown with an interferometer by means of which differences in length are measured in terms of wave-lengths of light to the millionth of an inch. A four-inch square precision gage is being compared for length with the Bureau's standard 4 inch, which is rectangular in shape. These gages are tested against the master gages which the different auto manufacturers check their measuring devices so that the parts of the cars separately made can be, when assembled, fitted perfectly. The standard gage and the master gage are shwon being compared in the interferometer, 5/28/37

Interferometer tests standard gages for automobile manufacturers. Wash...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Interferometer tests standard gages for automobile manufacturers. Washington, D.C. May 28. I.J. Fullmer of the Bureau of Standards is shown with an interferometer by means of which differences in length are measured in terms of wave-lengths of light to the millionth of an inch. A four-inch square precision gage is being compared for length with the Bureau's standard 4 inch, which is rectangular in shape. These gages are tested against the master gages which the different auto manufacturers check their measuring devices so that the parts of the cars separately made can be, when assembled, fitted perfectly. The standard gage and the master gage are shwon being compared in the interferometer, 52837

Interferometer tests standard gages for automobile manufacturers. Wash...

A man in a tie is looking through a microscope, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. 1955. ... More

A red "hotbed" in Brooklyn College. Washington, D.C., Aug. 23. Congressional investigators heard testimony today that Brooklyn College, N.Y. "might quite fairly be labeled a hotbed of propaganda" and communist activity. Prof. Edward I. Fenlon of the College's Department of Philosophy made the assertion in testimony before the House Committee investigating Un-American activities. He testified that professors and students were "deluged" with communist propaganda. Which at times lettered the sidewalks in places a half inch thick, 8/23/38

A red "hotbed" in Brooklyn College. Washington, D.C., Aug. 23. Congres...

A black and white photo of a man sitting at a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Initiative needed here. Washington, D.C., June 3. Initiative was certainly needed when Clarence Jackson, diminutive news photographer, was sent to get a closeup of policeman Edward F. Brown, 6 foot, 91/2 inch arm of the law who gaurds the entrance to the Senate cloakroom at the Capitol. Jackson got the picture even though he had to resort to a desk to get on speaking terms with the huge policeman, 6/3/38

Initiative needed here. Washington, D.C., June 3. Initiative was certa...

A man standing next to a man in a suit. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Sampling cotton at compress for length of staple and grade. These expert samplers can tell merely by looking at the staple what its length is within one sixteenth of an inch. Compress, Houston, Texas

Sampling cotton at compress for length of staple and grade. These expe...

Public domain photograph of the United States military and military-industrial complex before World War Two, 1930s, free to use, no copyright restrictions image - Picryl description

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is being rolled by a three-high 100 inch plate mill to bring it to the proper length, finish, thickness and width. It will eventually be used as tank armor

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is b...

Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description

Steel manufacture, Allegheny-Ludlum. Here is one of the huge seventy-two inch mills used to produce smooth, bright cold-rolled finish on steel sheets. The two highly polished center rolls are reinforced by heavier rollers to assure uniform reduction in the thickness of the sheet. These mills are used in the production of high quality steel

Steel manufacture, Allegheny-Ludlum. Here is one of the huge seventy-t...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

War ration book no. 3. This new ration book, replacement for present books when their stamps are used up, will be distributed during the early summer. It contains four pages of "point" stamps, similar to the point stamps in war ration book 2, though slightly different in design and printed in brown ink. It also contains four pages of "unit" stamps for the type of rationing now used for sugar, coffee, and shoes. Each page of fourty-eight stamps bears the design of a different war machine, including guns, tanks, aircraft carriers and planes. One of each of these stamps is reproduced separately below the picture of the book. Important note: Actual dimensions of the point ration stamps are 7/8 inch x 1 inch, while the unit stamps are 7/16 inch x 1 inch. The U.S. Secret Service requests that ration stamps not be reproduced in actual size, but less than 3/4 or over 1 1/2 times. Also, stamps should not be reproduced in color. This photograph, if reproduced, same size, meets these requirements

War ration book no. 3. This new ration book, replacement for present b...

Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.

Steel manufacture, Allegheny-Ludlum. A slab of stainless is about to enter a three-high 110 inch plate mill, just having been removed from a heating furnace. This mill will roll the slab to produce the finish, thickness, width and length required for its use as tank armor

Steel manufacture, Allegheny-Ludlum. A slab of stainless is about to e...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Assembling a joint of screen door. Screen door stock used is one inch by four inches. Joints are cut square and held together with corrugated fasteners. Screening demonstration. Saint Mary's County, Ridge, Maryland

Assembling a joint of screen door. Screen door stock used is one inch ...

Picryl description: Public domain photograph of a worker, construction, carpenter, 1930s, free to use, no copyright restrictions.

Army uniform trouser manufacture. Kane Manufacturing Company, Louisville, Kentucky. Cotton khaki and wool serge trousers are turned out here at the rate of 1300 a day to the designs and rigid specifications of the Army Quartermaster Corps. 34 sizes ranging from a small 28 inch waist with 29-inch leg to large size with a 46-inch waist and 33-inch leg. Here Frank Ernwine lays out patterns. He has been at his trade for forty-five years and helped make Army uniforms in World War I

Army uniform trouser manufacture. Kane Manufacturing Company, Louisvil...

Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.

Barrage balloon manufacture. Spider and the flies. Putting last touches on a completed barrage balloon are these workers and their supervisor (standing). To inspect the bag for leaks, the light inside is turned off, leaving the workers in a midnight gloom. Then a co-worker on the outside takes a bright light, and works along the length of the entire balloon, back and forth, until he has covered every inch. The tiniest pinhole shines forth like a bright star in the sky, and these alert inspectors spot it and repair it. Cloth moccasins are worn inside the bag, or else stocking feet--to avoid chafing the fabric. General Tire and Rubber Company, Akron, Ohio

Barrage balloon manufacture. Spider and the flies. Putting last touche...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Hollow steel sucker rod placed in two inch casing. Ridge well project, Saint Mary's County, Maryland

Hollow steel sucker rod placed in two inch casing. Ridge well project,...

Public domain photograph - historical image of Maryland, United States, free to use, no copyright restrictions image - Picryl description

Additional five inch steel casing connects the concrete reservoir with the pump. Safe well demonstration, La Plata, Maryland. Charles County

Additional five inch steel casing connects the concrete reservoir with...

Picryl description: Public domain photograph of a worker, construction, carpenter, 1930s, free to use, no copyright restrictions.

Streaking into the mixture, and forming the marbleized pattern, the powdered components at first can be detected in the mixture; the yellow of sulfur here, the white of zinc there. Soon however, one begins to blend into the other, and before that batch is removed, every element is completely mixed in--thoroughly impregnating every inch of the rubber with the proper elements for the purpose intended. General Tires, Akron, Ohio

Streaking into the mixture, and forming the marbleized pattern, the po...

Picryl description: Public domain image related to death, coffin, funeral, burial, monument, cemetery, free to use, no copyright restrictions.

Flyweight calling for four inch capacity semi-automatic turret lathe, internal thread grinder, internal grinder, cylindrical grinder, and lapping and heat treating facilities

Flyweight calling for four inch capacity semi-automatic turret lathe, ...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Civilian protection. Every square inch of the body must be well protected by impermeable or impregnated clothing to enable the decontamination worker to closely approach liquid vesicant gas. Later, the clothing must be carefully removed by a helper himself dressed in gas-proof clothing and decontaminated

Civilian protection. Every square inch of the body must be well protec...

Public domain photograph of the United States in the 1930s, portraits, people, events, free to use, no copyright restrictions image - Picryl description

Civilian protection. Every square inch of the body must be well protected by impermeable or impregnated clothing to enable the decontamination worker to closely appraoch liquid vesicant gas. Later, the clothing must be carefully removed by a helper himself dressed in gasproof clothing and decontaminated

Civilian protection. Every square inch of the body must be well protec...

Public domain photograph of the United States military and military-industrial complex before World War Two, 1930s, free to use, no copyright restrictions image - Picryl description

An Ohio manufacturer is looking for two and thirteen-sixteenths inch and three and three-sixteenths inch automatic screw machine facilities for the machining of large quantities of steel fuse parts. Item: inner can. Material: cold rolled steel tubing two and thirteen-sixteenths inch diameter by three inches. Tolerances: plus or minus --1. Quantity: five-hundred daily. Machines needed: automatic screw machine two and thirteen-sixteenths inch capacity, drill jig, single spindle tapper. Item: outer can. Material: cold rolled steel tubing three and three-sixteenths inch diameter by eight inches. Tolerances: plus .002 minus .000. Quantity: 500 daily. Machines needed: automatic screw machine, three and three-sixteenths inch capacity, drill jig, tapper, milling machine. A government procurement agency is seeking a contractor with facilities for forging heat treating and machining bulkheads. These parts are twenty-one inches in diamerter by eight inches. Material: steel, alloy CM. Dimensions: twenty-one inches in diameter by eight inches. Tolerances: close. Quantity: 500 to 6000 pieces per month

An Ohio manufacturer is looking for two and thirteen-sixteenths inch a...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

A Detroit manufacturer of air craft engines is seeking automatic screw machine facilities for the manufacture of ninety-six items of steel and bronze air craft engine hardware in quantities from fourteen thousand to two-hundred thousand and in diameters from one-quarter inch to one and one-half inches. Three of the items are illustrated. Left, oil relief valve cap; right, cap nut

A Detroit manufacturer of air craft engines is seeking automatic screw...

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Hoisting a section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of construction site, excavation works, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Superintendent for the Oklahoma contracting company on one fifty-mile section of the line

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Joining a section of pipe to the line

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Ditch for the pipeline in the hilly country

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Members of the laying-in gang

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Joining a forty-foot section of pipe to the main line

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Caterpillar operator on the right of way gang

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Cleaning mud off the ditching machine

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Pipeline going through hilly country

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description

Discarded stockings go to war. Discarded silk stockings have helped to set off the charge of this big 16 inch gun. Powder bags made from cloth woven from old silk hose, provided the ideal non-residue material required for propelling projectiles in heavy guns

Discarded stockings go to war. Discarded silk stockings have helped to...

Picryl description: Public domain image of an artillery gun, cannon, weapon, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Strung pipe and ditch

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Pipeline going through a hillside cornfield

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

A scale wind tunnel model of North American Aviation's P-51 fighter is prepared by two model shop employees before another test is made to determine its flight characteristics. All measurements on these models are within two thousandths of an inch

A scale wind tunnel model of North American Aviation's P-51 fighter is...

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Pipeline right of way through the countryside

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Joining a section of pipe to the main line

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

Anaconda smelter, Montana. Anaconda Copper Mining Company. A series of roll crushers reduce the size of ore from a maximum of one inch to the size of coarse sand

Anaconda smelter, Montana. Anaconda Copper Mining Company. A series of...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Ditch going through the right of way

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Making a bend in a section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Gang clearing rocks out of the ditch

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Production. Pipe fittings. Forging shop crew of a Midwest plant serve the world's largest machine of its kind a nine inch upsetter. This machine is used for forging 75 mm shells for the Army. Tube Turn Incorporated

Production. Pipe fittings. Forging shop crew of a Midwest plant serve ...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Making a road over the ditch passable

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Anaconda smelter, Montana. Anaconda Copper Mining Company. Repairing roll crusher; in this crusher ore is reduced in size from a maximum of one inch to the fineness of coarse sand

Anaconda smelter, Montana. Anaconda Copper Mining Company. Repairing r...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Caterpillar tractor and operator

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Willis Garner tack welding a section of pipe to the main line

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Caterpillar tractor operator

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

To hold 2500 pounds of air pressure per square inch. Ready for a new operation in the manufacture of torpedoes at an eastern Navy arsenal. Production here is on a twenty-four hour schedule to meet war needs

To hold 2500 pounds of air pressure per square inch. Ready for a new o...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

Conversion. Paper machinery to plant wing parts. All bearing surfaces on turret gun mount housings for M-3 tanks are rough planed and finished planed on a fifty inch by fifty inch four-head planer. The job is being done in the plant of an Eastern paper machinery manufacturer who is also turning out naval sights and plane wing equipment

Conversion. Paper machinery to plant wing parts. All bearing surfaces ...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Backfilling the ditch after the pipe has been laid

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Caterpillar tractor climbing a hill

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Right of way gang passing through the countryside

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of farming, farmer, agriculture, 20th-century, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Ditch and strung pipe cutting through hilly country

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Conversion. Silverware plant. To meet Air Corps Ordnance specifications, this bomb shackle must be accurate to the 1/10,000th of an inch, and that's pretty tight measuring by anybody's standards. An employee of an Eastern plant which produced silver tableware in peacetimes, inspects the shackle aided by a surface height device. Oneida Ltd., Oneida, New York

Conversion. Silverware plant. To meet Air Corps Ordnance specification...

Public domain photograph of New York in 1930s, free to use, no copyright restrictions image - Picryl description

Production. Plywood for aircraft and boats. Making plywood panels for combat planes and boats. A huge hydraulic press operating at high temperature and a pressure of 250 pounds per square inch attaches glue-surfaced veneer sheets to lumber-core panels to make high-grade plywood for Army and Navy uses. Louisville, Kentucky

Production. Plywood for aircraft and boats. Making plywood panels for ...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Welding together forty-foot section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Pipe laid in the ditch, ready to be covered over

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Joining a section of pipe to the line

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Butte, Montana. Anaconda Copper Mining Company. Bits for the pneumatic drilling machines are classifed as to length of shaft in this automatic machine; a segregation of bits to one-thirty-secondth of an inch is maintained

Butte, Montana. Anaconda Copper Mining Company. Bits for the pneumatic...

Picryl description: Public domain image of workers, labor, 1940s, economic conditions, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Backfilling the ditch after the pipe has been laid

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Pipeline workers crossing a stream

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Pipe stred along the railroad tracks

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Members of the laying gang

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain image of a mountain pass, summit, rocks, mountains, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a road works, construction, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July 1943. Hoisting a section of pipe

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Pennsylvania section of the war emergency twenty-four inch pipeline to carry oil from Texas fields to eastern refineries, completed in July, 1943. Ditching machine going through the woods

Pennsylvania section of the war emergency twenty-four inch pipeline to...

Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description

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