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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
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
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 ...
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
reverse side of stereoscopic card