Lot 80027 – Canada, Newfoundland – 1857 6d, trial proof in black on thick paper,

Canada, Newfoundland – 1857 6d, trial proof in black on thick paper, with Sperati’s “REPRODUCTION INTERDITE” in purple and pencil signature below design, on reverse is Sperati’s yellow emblem “Philatelie d’Art”; a complete proof in razor-sharp impression and with good range of Sperati’s personal markings, unique.