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Flotation bag manufacturing. There are as many types of flotation bags...
Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description
Flotation bag manufacturing. Stack of flotation bags made of rubberize...
Public domain photograph of the 1930s-1940s World War Two, armed forces, military production, no copyright restrictions image - Picryl description
Subcontracting aircraft parts. These workers at the huge airship dock,...
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.