Part of a photograph album related to Julius A. Barr's personal life and flying career in the United States and China, circa 1929-1931.Creation Datecirca 1929-1931SubjectAir pilotsOriginal Formatphotographic postcardsBibliographic CitationThe Julius A. Barr Photograph Albums and Films/The Museum of FlightRightsIn copyright
[Four men with unidentified aircraft], [2019-10-24_image_270]. Museum of Flight Digital Collections, accessed 14/12/2025, https://digitalcollections.museumofflight.org/nodes/view/22105
![[Four men with unidentified aircraft]](/img/placeholder.gif?1762209064 "[Four men with unidentified aircraft]")