Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

Canada - King George V ''Arch/Leaf'' issue

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Start price: $100

Buyer's premium:

1930, Quebec Citadel, 12c gray black, four plate No.1 blocks of four from all corners, full OG, two top margin blocks – LH on margins, LL block is NH and LR block has top stamps LH, VF, Unitrade C.v. CAD$1,250, Est. $200-$250, Scott #174