Watch List notes:

BRITISH COINS, Ireland, George III, Soho coinage, Proof Halfpenny, 1805, in gilt-copper, edge centre-grained, 6h (S 6621; DF 599; KM. 147.1a). Minor hairlines, otherwise brilliant and virtually as struck; with original metal shells £460-500

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Slabbed in NGC holder, graded PF 63