Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2
Lot 671:
1897, Queen Victoria Maple Leaf issue, plate proof of 1c in blue green, horizontal imperforated pair on India paper mounted on card, no gum as produced, VF, Unitrade C.v. CAD$330, Est. $100-$150 , Sc. #67
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