1883-94 16c. design master die proof in black on glazed card (92x60 mm.), marked "AFTER HARDENING", dated "20 SEP83" and signed "W Bartlett", nine mint blocks of four to 50c. (2), three values overprinted "SPECIMEN", 4c. and 8c. cancelled "B65", 4c. cancelled "B64" and a few surcharges