Lot 8, Canada 1851 twelve penny black plate proof, with SPECIMEN July 24, 2020January 3, 2017 by Sparks Auctions Lot 8 Canada #3Pi 1851 12d black Queen Victoria Plate Proof, with vertical SPECIMEN in carmine and extensive re-entry of the frameline at left. Four even margins, tiny spot in margin at top left, still very fine. Unitrade CV$2,500.