cover North West Pacific Islands, 1921, 2p Orange, 4p Orange, 4p Violet (Gibbons 104, 123, 121), two covers, one bearing two colors of 4p tied by Rabaul 1921 c.d.s.'s on registered cover to U.S.A., other bearing strip of three of 2p perforated 'OS' similarly tied on registered cover to Batavia, New York (one stamp wraps slightly around edge of cover), fineest.