Lot 28 Canada #10 1857 6d reddish purple Consort Imperforate, on Thick Soft Paper, unused (no gum) with mostly clear margins and a sharp impression on fresh paper, fine. Accompanied by a 1970 Philatelic Foundation certificate and a 2016 Greene Foundation certificate, both stating “tiny thin at top right corner.” A true rarity with fewer than twenty or so unused examples recorded. Unitrade $18,000, sold for C$18,000 plus buyer’s premium.
