1872, Great Britain. JAMES WATT – ROYAL CORNWELL POLYTECHNIC SOCIETY. By William Wyon. Silver 46mm. Obv: Bust of Watt, left. Rev: inscription within a wreath. Edge: Inscription: THOMAS CARR FOR PATENT DISINTEGRATING MILLS, 1872. Cased.Extremely fine with light, attractive toning. $100 ?Sorry, SOLD