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

Canada - King George V Pictorial issue

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Start price: $300

Buyer's premium:

1935, large die proof of 3c in carmine on India paper, mounted on sunken card, No. XG-579 at the top, proof size 75x80mm, card size 150x227mm, perfect quality, VF and scarce, NSSC #183dp5, C.v. US$900, Est. $600-$800, Scott #219