1959 MUH*ANTARCTICA - 5d Surch. on 4d - BLOCK of 12 SHACKELTON EXPED. in 1909. This is a rare and exceptional block of 12 stamps in Mint Never Hinged/MNH condition. The stamps feature a sepia-coloured design of the Shackleton Expedition in 1909, commemorating the Australian Antarctic Territory. With a denomination of 5 pence, this pre-decimal stamp set is a must-have for any serious collector. The XF/S (Extremely Fine/Superb) grade and the year of issue, 1959, add to its value and appeal.