George IV (1820-30), Proof Set, 1821, Sovereign, Half-sovereign, Crown, Halfcrown, Shilling and Sixpence, laureate bust left, Halfcrown variety with less garnishing to shield (S.3800, 3802, 3805, 3807, 3810, 3813), perhaps once lightly cleaned, now attractively toned, generally good extremely fine, uncased (6)