trip hammer

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First steam fire engine, and trip hammer

First steam fire engine, and trip hammer

2375H U.S. Copyright Office. No. 2775. Public domain photograph - ship, port, harbor, free to use, no copyright restrictions image - Picryl description

Apostle Islands, Lake Superior, Trip Hammer

Apostle Islands, Lake Superior, Trip Hammer

Locale in Presque Isle based on Detroit, Catalogue F (1899). "423" on negative. Detroit Publishing Co. no. 04728. Gift; State Historical Society of Colorado; 1949. Unverified information in this record. 752 fie... More

Trip hammer, steel works, Stereoscope Card

Trip hammer, steel works, Stereoscope Card

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

A poster comes to life. Sergeant Vineyard knows a lot about howitzers and anti-aircraft guns but he'd never seen a machine like this giant trip-hammer until he visited an Allegheny-Ludlum steel mill. A skilled worker at the mill explains the shaping of steel for armaments to the Sergeant, whose appreciation for the fine art of steelmaking grows by the minute. Allegheny-Steel, Pittsburgh, Pennsylvania

A poster comes to life. Sergeant Vineyard knows a lot about howitzers ...

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.

Trip hammer, steel works, Stereoscope Card

Trip hammer, steel works, Stereoscope Card

reverse side of stereoscopic card