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

Canada - King George V Silver Jubilee issue

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Start price: $250

Buyer's premium:

1935, Prince of Wales, large die proof of 5c in blue on India paper affixed over sunken die card, imprint at bottom ”X-G-591. Canadian Bank Note Co. Ltd”, proof size 75x83mm, card size 152x205mm, red ”For Approval” at the top, Engraving Order Department and A.L.S. Mar. 21, 1935 handstamps on reverse, minor stains on proof margins, no gum as produced, VF and rare, Walsh NSSC 178dp4, C.v. US$1,500, Est. $500-$600, Scott #214