The B.A.N.Z. Antarctic Expedition:Official original photograph by Captain Frank Hurley:Image A33 - title: the Discovery's long Arm,with official 'Mawson Antarctic Expedition' handstamp and release date 'Tuesday Apr. 15, 1930' verso, together with the official letterhead, title, and details of the image, 'Flying-officer Campbell and pilot-officer Douglas standing beside the Gipsy Moth seaplane...',26 x 20 cm.