Antarctica: Selection of mainly scarcer covers etc. from later expeditions incl. Operation Windmill with 1948 (Feb. 20) U.S. Navy Antarctic Expedition printed envelope (addressed locally to USS “Burton Island” franked F.I.D. Thick Map 1/2d. pair tied by E1 c.d.s. showing “1947” year date error, Operation Deepfreeze with 1956 (Oct. 26) First Polar Overflight with cachets, late use of Snow Cruiser envelope in 1958 signed by joint leaders of the second wintering over party, Fuchs and Hillary, also Richard (’Dickey’) Byrd Jr. with items from family archive incl. German 1931 ‘catapult’ cover, etc.