Canada CL13i Postage Due and Officially Sealed the key imperforate of this

the key imperforate of this popular series

well centered within large margins

1985 ($2) Banff National Park

well centered with pristine original gum

well centered mint block of four of this difficult shade

Canada CL13i Postage Due and Officially Sealed the key imperforate of this1926 (July 1) (25c) Patricia Airways, Style One, green route inscription, an outstanding mint example with sheet margin at right, clearly displaying the "RED LAKE" marginal inscription INVERTED ERROR, which is furthermore noticeably shifted horizontally (16mm) to one side; brilliant fresh colour, well centered with full original gum. A major airmail rarity of the popular Patricia Airways & Exploration Co. Ltd., Very Fine, Never Hinged (Unitrade CL13i