The B.A.N.Z. Antarctic Expedition: official original photograph by Captain Frank Hurley: image A43 - title: Repelling an air raid, with official 'Mawson Antarctic Expedition' handstamp and release date 'Monday Apr. 28, 1930' verso, together with the official letterhead, title, and details of the image, 'Two Rockhopper penguins (Heard Island) prepare to meet the attack of a predatory Skua Gull...',26 x 20 cm.