Watch List notes:

The Portland Collection, British Coins, Victoria, proof Maundy set, 1839, young head l., rev. crowned value within wreath (S.3916), all certified and graded by NGC, the fourpence and twopence as Proof 64 Cameo, the threepence as Proof 63 Cameo, the penny as Proof 64 (4)
The twopence one of only two in this grade, only one is graded higher.