Watch List notes:

Two Pounds 1831 Proof S.3828, 15.79 grammes, EF/About EF with some surface marks, Very Rare, Krause states a mintage of 225 pieces, although only 150 were in sets, Ex-LCA A162 Lot 2723 realised £5500 hammer price

Estimate: 5000-6000 GBP