Proving Pieces, The Mint, Birmingham, Specimen Piece, in nickel-silver, c. 1870, obv. blank, rev. value in wreath, edge plain, 38mm (Sweeny 22; cf. Tansley 494; cf. DNW 97, 524). Some staining streaks, otherwise extremely fine, very rare
£80-100

Slabbed in NGC holder, graded PF 55