Great Exhibition, Hyde Park, 1851, Exhibitor's Medals (4), copper awards by W. Wyon, bust of Prince Albert left, rev. globe within wreath, edges named (United Kingdom, Class 22, No 556; Class 26, No 132; Class 26, No 300; Class 30, No 10), all 44mm (Allen HP-A055; BHM 2463; E 1459) [4]. Varied state; one cased £100-£150