Watch List notes:

British Coins, Elizabeth II, VIP proof shilling, 1958, 'Scottish' reverse, laur. head r., rev. crowned shield of arms (S.4148; ESC.1475 X; Bull 4501), certified and graded by PCGS as Proof 65 Cameo, very rare
Very few specimens known and the only example graded PF65CAM by PCGS.
(600-700 GBP)