Lot 617, Canada 1932 Canadian Airways Ltd. surcharge, mint horizontal pair, one showing inverted surcharge July 24, 2020January 29, 2020 by Sparks Auctions Lot 617 Canada #CL52c 1932 10c Canadian Airways Ltd. Surcharge, a mint hinged horizontal pair, with one stamp showing an inverted surcharge. Each stamp has a “Kessler” expert handstamp, very fine and scarce. Unitrade CV$2,000.