Lot
280 
North West Pacific Islands, 1915, 1p on 3pf Brown with "O.S. G.R.I." overprint on cover, with additional ten North West Pacific island values to the 1s both Kangaroo and KGV types (1//12) all tied to philatelic cover with Rabaul 4 De, 1915 cds, Very Fine for this, the Official is seldom seen on cover.Estimate $400 - 600.
Current Opening Bid: $200
Lot 281 o
North West Pacific Islands, 1919-1923, King George V, 1p-5p Set with "O.S." Perfin, all are lightly canceled with good color, F.-V.F., a scarce used set. SG No. O4-O5, O16-O21 £873 ($1,160).Estimate $200 - 300.
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Current Opening Bid: $100
Lot
282
North West Pacific Islands, 1916, Kangaroo & Map, 5p with "O.S." Perfin on Registered Cover, tied with Rabaul cds, German New Guinea registration etiquette at lower right, straight line "Passed Censor" in purple at left along with scarce "Passed Censor Rabaul" tape, addressed to England, backstamped with Sydney and Liverpool transit markings and Warrington receiving cds, Very Fine, a very scarce censor cover. SG No. O5.Estimate $200 - 300.
Current Opening Bid: $100
Lot 283 o
North West Pacific Islands, 1919-1923, Kangaroo and Map, 2p-2sh with "O.S." Perfins, all with overprint type a, lightly canceled, with good color and centering, Very Fine, a scarce group. SG No. O6-O12 £1,530 ($2,040).Estimate $400 - 600.
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Current Opening Bid: $200
Lot 284 o
North West Pacific Islands, 1919-1932, 2p, 3p, 6p, 1s and 2s "O.S." Perfins, all with type "a" overprints and lightly canceled, 6p is the greyish-blue shade, Very Fine overall, a scarce group. SG No. O6//O12 £955 ($1,270).Estimate $300 - 400.
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Current Opening Bid: $150
Lot 285 o
North West Pacific Islands, 1918, Kangaroo with Map 2p with "O.S." Perfin Strip of Four, light cancel, all with overprint type "a", F.-V.F., a very scarce used multiple. SG No. O6 £320 as singles ($430).Estimate $100 - 150.
Current Opening Bid: $50
Lot
286 
North West Pacific Islands, 1918, Kangaroo & Map, 2½p with "O.S." Perfin, o.g., overprint type a, good color, centered slightly to the right, F.-V.F., a scarce stamp. SG No. O7 £600 ($800).Estimate $150 - 200.
Current Opening Bid: $80