1931 (4 Aug) cover to N.Z. bearing 6c Sultan tied by squared-circle datestamp. Scarce single franking
Lot 921
Estimate: $100
1944 (28 Jul) censored reg’d cover to USA bearing 30c and 2/- (3) tied by 'REG/ ZANZIBAR' datestamps, tape at left, U.S. customs cachet in violet, Chicago arrival cds
Lot 922
Estimate: $200
1959 (3 Apr) underpaid airmail cover to N.Z. bearing 5c, 10c, 25c, 35c and 50c, endorsed in blue crayon 'T110c' and circled 'TO PAY/DOUBLE DEFICIENT POSTAGE' mss. '2/3', ordinary adhesives 1/- pair and 3d affixed and cancelled on arrival