Watch List notes:

British Copper Coins from the Collection Formed by the Late George Bates (Part II)

William and Mary (1688-1694), Pattern (?) for a Halfpenny, unsigned, in copper, from the same dies as previous, edge plain, 6.26g/6h (BMC 631; Montagu 2; cf. DNW 148, 530). A pocket piece, fair, extremely rare £90-£120