George IV (1820-1830), Pattern Crown, 1820, by G. Mills for R. Whiteaves, in silver, bare head left, date below, rev. crowned arms in Garter with supporters, national emblems on ribbons below, edge plain, 35.41g/12h (L & S 7; ESC 259). Practically as struck with attractive blue-grey tone, very rare £6,000-8,000