Silver. Diameter 13.2mm.  0.96 gram.  GULIELMUS IIII D: G: BRIITANNIAR: REX F: D: Bare head of William IV right.  R. UNITED COLONY OF DEMERARY & ESSEQUIBO around, crown above 1/8 in centre within wreath, 1832 below.  KM 16.  VF

Ex David Rogers collection.