Filtering by: Source Collection sir george hubert wilkins papers Remove constraint Source Collection: sir george hubert wilkins papers File Format video/mp4 Remove constraint File Format: video/mp4 Resource Type moving image Remove constraint Resource Type: moving image Subject wilkins, george h. (george hubert), sir, 1888-1958 Remove constraint Subject: wilkins, george h. (george hubert), sir, 1888-1958 Subject airplanes Remove constraint Subject: airplanes Time Period (Topic) 1930s (1930-1939) Remove constraint Time Period (Topic): 1930s (1930-1939) Time Period (Topic) 1920s (1920-1929) Remove constraint Time Period (Topic): 1920s (1920-1929)