Blending. Many batches of synthetic rubber latex are batched and blend...
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.
Conversion. Watch cases to war production. Compacts out, war productio...
Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description
Fort Knox: Tank training. Parade of M-4 (General Sherman) and M-3 (Gen...
Picryl description: Public domain image of an American Civil War, military forces and conflict, officer, uniform, free to use, no copyright restrictions.
Official photograph taken on the British Western Front in France. Germ...
Photograph shows a long line of German soldiers, prisoners of war, walking along roadway, somewhere in France. No. L990.
Conversion. Rendering of household fats. Reclaimed household greases f...
Public domain photograph of 1930s-1940s industrial development, no copyright restrictions image - Picryl description
The mill room. Measured batches are delivered to these tire workers, w...
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description
A black and white photo of bags of cement. Office of War Information P...
Public domain photograph - United States during the 1930s and 1940s, Farm Security Administration, New Deal, free to use, no copyright restrictions image - Picryl description
The 90-gallon water-jacketed kettle in which 3-4 batches of sauce are ...
Public domain photograph - historical image of Texas, United States, free to use, no copyright restrictions image - Picryl description