CANADA. 1921 (Aug 29). Registered cover to CHILE franked by 1897 Jubilee 1c, 1897 1/2c black and 1912-25 values 3x1c green, pair or 2c carmine, 5c blue, 7c yellow and 10c plum all tied by "R" ovals with Kitchener-Ont despatch cds alongside. Reverse with t