Filtering by: Source Collection sir george hubert wilkins papers Remove constraint Source Collection: sir george hubert wilkins papers Digital Collection Sir George Hubert Wilkins Papers Remove constraint Digital Collection: Sir George Hubert Wilkins Papers Sub collection sim series 5: films/sound recordings Remove constraint Sub collection sim: series 5: films/sound recordings Subject explorers Remove constraint Subject: explorers Subject airplanes Remove constraint Subject: airplanes Time Period (Topic) 1930s (1930-1939) Remove constraint Time Period (Topic): 1930s (1930-1939)