Filtering by: Resource Type moving image Remove constraint Resource Type: moving image Subject equipment and supplies Remove constraint Subject: equipment and supplies Subject wilkins, george h. (george hubert), sir, 1888-1958 Remove constraint Subject: wilkins, george h. (george hubert), sir, 1888-1958 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)