Part of a photograph album related to military aircraft designed and built by Keystone Aircraft Corporation, circa 1926-1932.Creation Date1931-04-08SubjectAirplanes, MilitaryKeystone XOK-1Extent1 photograph : print, black and white ; 10 x 8 inLanguageEnglishOriginal Formatphotographic printsBibliographic CitationThe Peter M. Bowers Photograph Collection and Papers/The Museum of FlightRightsNo copyright - United States
Keystone, [Keystone XOK-1 aircraft], [2008-03-31_image_A4-016]. Museum of Flight Digital Collections, accessed 06/12/2025, https://digitalcollections.museumofflight.org/nodes/view/11306
