Subjects in this box include "Old Engines", Lockheed P-38 Lightning aircraft, Goodyear airships, the Aircraft Industries Association, the National Business Aircraft Association, and "People in Aviation."
Collection Restrictions:
Physical access to film originals (negatives, transparencies, and slides) requires notice a minimum of two business days in advance of visit to allow for retrieval of materials from cold storage.
Collection Rights:
Material is subject to Smithsonian Terms of Use. Should you wish to use NASM material in any medium, please submit an Application for Permission to Reproduce NASM Material, available at Permissions Requests.
Collection Citation:
Hans Groenhoff Photographic Collection, Acc. XXXX.0359, National Air and Space Museum, Smithsonian Institution.
