Watch List notes:

COINS, WEST INDIES, BRITISH GUIANA George V (1910-1936), Silver Proof 4-Pence, 1925 (KM 29). Uncirculated Proof, lacquer is unevenly applied on the edge so that the reeding is toned, a few minor marks, but the only piece known.
ex South Africa Mint dispersal.

Estimate: £300-400