Watch List notes:

COMMEMORATIVE MEDALS, BRITISH MEDALS, Medals by Benetto Pistrucci (1783-1855), George IV, Coronation 1821, Official Gilt-copper Medal, by Benedetto Pistrucci, laureate bust left, rev the King enthroned before figures of the three Kingdoms, crowned by Victory, 35mm (BHM 1070, gilt not listed; Eimer 1146; Stef pl.22; M pl.14). Extremely fine with matt surface, insignificant test mark on top edge by BRI of BRITANNIATUM.
The medal appears to have been struck on a gilt flan, rather than being a copper medal that has subsequently been gilt.

Estimate: £100-150