[Mechanic's identification card issued to Robert L. Simons, July 22, 1932]

United States. Department of Commerce. Aeronautics Branch, [Mechanic's identification card issued to Robert L. Simons, July 22, 1932], [1998-05-05-B_text_002]. Museum of Flight Digital Collections, accessed 11/12/2025, https://digitalcollections.museumofflight.org/nodes/view/3997