Aircraft of all nations, a new series of photographs (1917)
Woodhouse, Henry, 1884- · New York, C. S. Hammond & company · leaf 12
A squadron of American military aeroplanes at one of the Army aviation stations. The machines shown are of the "Standard," "Curtiss"and "L.W.F." types.
Airships
Internet Archive · The Library of Congress · Public domain (published before 1931). Free to use for anything.