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Auction: 177 - The Philatelic Collector's Series Sale
Lot: 204

Canada - Semi Official Airmails
1925, Northern Air Service, pair of Experimental Flight Covers
one franked with 3c Admiral, tied by Haileybury c.d.s (MY 18), to Rouyn Lake, the other with 1c and 2c Admirals, tied by Rouyn Lake split-ring (MY 18), to Haileybury, both with corresponding same-day arrival backstamps and with violet two-line "FIRST EXPERIMENTAL FLIGHT" cachets, each having been flown by pilot B.W. "Bill" Broatch to demonstrate the viability of this route, a scarce pair as only eight are recorded carried, these being of particularly choice quality, very fine. (Unitrade CA$5,000)
Cover

Sold for
$1,700

Starting price
$900