Watch List notes:

Isle of Man Halfpenny 1733 Silver Proof, interior of cap frosted, 6.41 grammes, S.7410d, Pridmore 29b die rotation of around 60 degrees GEF with old grey toning and flashes of gold, Rare, comes with old ticket stating Ex-Spink Auction 11.1980

Estimate: 900-1100 GBP