George IV (1820-1830), Pattern Crown, 1820, by G. Mills for R. Whiteaves, in silver, large bare head left, date below, rev. crowned arms in Garter, with supporters, national emblems on ribbons below, edge plain, 35.90g/12h (L & S 7; ESC 259). Light wear on high points and a small edge nick on reverse at 8 o’clock, otherwise practically as struck with grey tone, very rare £4,000-5,000