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Florian Lampert, Wis. - Public domain photograph, glass negative
A black and white photo of a man sitting in a chair. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
The new amphibian airplane, that is at home both [...] water and land ...
Picryl description: Public domain image of an aircraft, aviator, 1910s-1920s, early 20th-century aviation, free to use, no copyright restrictions.
Brig. General William Mitchell, Assistant Chief of the Air Service tes...
A large group of people sitting around a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Florian Lampert, Wis. - Public domain photograph, glass negative
A black and white photo of a man sitting in a chair. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description