Watch List notes:

Britannia Gold Proof Set 2017 30th Anniversary of the First Britannia, the 6-coin set comprising £100, £50, £25, £10, £1 and 50 Pence each coin with '30 in Trident' privy mark, all in NGC holders 'One of the first 30 struck' all graded NGC PF70 Ultra Cameo, the £100 with a very low mintage of just 280 pieces, in the Royal Mint presentation box with certificate and booklet, certificate number 22 of just 30 sets issued in this format

Estimate: 2600-3200 GBP