The B.A.N.Z. Antarctic Expedition:Official original photograph by Captain Frank Hurley:Image A56 - title: Heading south through stubborn icefields,with official 'Mawson Antarctic Expedition' handstamp and release date 'Tuesday May 6, 1930' verso, together with the official letterhead, title, and details of the image, 'The bows of the Discovery forcing a passage through open pack ice north of Kemp Land...',35 x 13 cm.