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

Canada - Modern Errors and Varieties

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Start price: $1,000

Buyer's premium:

1971, Maple Leaves, (7c) multicolored, top sheet margin single with missing gray inscription, full OG, NH, VF and rare, Green Foundation certificate, Unitrade #537i, C.v. CAD$4,000, Scott #537 var