The B.A.N.Z. Antarctic Expedition:Official original photograph by Captain Frank Hurley:Image A16 - title: two scenes which illustrate the life of the giant Petrel,with official 'Mawson Antarctic Expedition' handstamp and release date 'Monday Feb. 24, 1930' verso, together with the official letterhead, title, and details of the image, 'Giant Petrels attain the size of a large pheasant and are the scavengers of the Sub-Antarctic Regions',26 x 20 cm.