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

Worldwide Air Post Stamps and Postal History - Canada

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Start price: $300

Buyer's premium:

1929, Commercial Airways, Ltd. ”VIA AIR”, (10c) black, pane of ten (no side selvage), stamp on position 2 with broken second ”C” in ”COMMERCIAL”, full OG, NH, VF and rare multiple, C.v. $1,800++, Unitrade C.v. CAD$2,520, both catalog values as singles, Est. $600-$700, Scott #CL47, a