This 1943 Upper Left Corner Block of 4, Plate 4, 7c deep blue Scott #C8 "British Commonwealth Air Training Plan"  War Issue Air Mail stamps from Don's Classic Stamps is in Mint Hinged (MH) condition, with several medium depth paper "folds"; some disturbed gum and hinge remnants (See Images). The Unitrade Specialized Catalogue of Canadian Stamps, which follows the Scott numbering system format in its listings, shows a Catalogue value of $8.00 (in Canadian currency) for this block.  (Item #11,717)