Chart Used by the Provisional Battalion, 56th Engineers to Identify Airplanes of Pvt. John J. Grant, World War I

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date(s):: 1918-07-26
creator(s):: Megargee, H. P.; Base Printing Plant, 29th Engineers, U.S. Army
subject(s):: World War, 1914-1918; Airplanes; Aircraft
type(s):: Poster; Chart