Lot 9 Canada #3Pi 1851 12d black Queen Victoria Plate Proof, with Vertical SPECIMEN Overprint in Carmine, a lovely block of eight on card-mounted India paper, fresh and very fine. A stunning block, and certainly one of the great showpieces of Canadian philately. This item would certainly form the cornerstone of a proof collection. Unitrade CV C$20,000.
A Traditional Philatelic Auction House — Ottawa, Ontario, Canada
