Watch List notes:

The Portland Collection, British Coins, Charles II, hammered coinage (1660-1662), third issue, threepence, undated, crowned bust l., mark of value behind, rev. shield of arms over cross fleury (S.3325), certified and graded by NGC as Mint State 62
*ex Bridgewater House, Sotheby's (15/16 June 1972), lot 335 (part).