GREAT BRITAIN. 50 Pounds, 2001. Llantrisant Mint. NGC PROOF-70 Ultra Cameo. S-BP5; Fr-458; KM-1022. Stunningly designed with traditional cameo features on the side with Elizabeth IIs bust and uniformly frosted, satiny surfaces on the side that features a modernized Britannia "Una" and the Lion motif. A seldom-seen issue in this ultimate certified grade.