Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2

British Commonwealth - North Borneo

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Start price: $750

Buyer's premium:

1883-86, Coat of Arms and Ship, ½c-$2, inscribed ”North Borneo”, imperforated compound proof sheetlet of 11 stamps in brown, including two unissued values of 25c and $2, printed on white wove paper, no gum as produced, VF and rare, Est. $1,200-$1,500, Sc. #1-3, 6-7, 8‑13