Watch List notes:

British Coins, Elizabeth II, VIP proof sixpence, 1954, laur. head r., rev. cross of interlaced rose, thistle, shamrock and leek (cf. S.4149; cf. ESC.1838 I; Bull 4527), certified and graded by PCGS as Proof 66 Cameo, extremely rare
The only example graded PF66CAM by PCGS.
(700-800 GBP)