Canada - Back of the Book
Single stamps, covers, plate blocks and multiples of stamps issued by Canada Post for purposes other than payment of regular lettermail postage by members of the public. Back of the Book includes semi-postal stamps, airmail stamps, air mail special delivery stamps, registration stamps, semi-official airmail stamps, computer vended postage, special delivery stamps, postage due stamps, war tax stamps, official stamps, and officially sealed stamps. Often overlooked by collectors, these issues offer a very rewarding study to the specialist.