11146 The product is a postcard featuring a Boeing 737 airplane operated by Astoria Airlines on the Toronto-Montreal route in Canada. The postcard, issued by the airline, is a printed lithograph in the photochrome era and measures a continental size of 6 x 4 inches. It is a single unit sold individually and is in unposted condition. The subject of the postcard is related to the airline industry, making it a unique and collectible item for aviation enthusiasts and postcard collectors alike.