Canada 1851 Used The Famous 12d Black, SG4Canada 1851 (June 14) 12d black on vertically laid paper, SG4, imperforate with mostly good to very large margins showing trace of adjoining stamp at right, but just a little close at upper left, and intense colour, attractively cancelled by large part target which exceptionally leaves portrait entirely clear. A beautiful example of this famous classic rarity known as 'The Black Empress" featuring an image of the young Queen Victoria. Since the early