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

Canada - Queen Elizabeth II Errors and Varieties

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Start price: $800

Buyer's premium:

1974, Telephone Centenary, 8c multicolored, imperforate top right corner margin plate block of four, full OG, NH, VF and rare, only two sheets of 50 were discovered, Unitrade C.v. CAD$5,000, Scott #641a