Filtering by: Source Collection sir george hubert wilkins papers Remove constraint Source Collection: sir george hubert wilkins papers File Format video/x-msvideo Remove constraint File Format: video/x-msvideo File Format image/jpeg Remove constraint File Format: image/jpeg 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)