Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2
Lot 675:
1898, Queen Victoria Numeral issue, plate proof of ½c in black, horizontal pair printed on India paper mounted on card, no gum as issued, VF, Unitrade C.v. CAD$400, Est. $140-$160 , Sc. #74
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