Watch List notes:

Fifty Pence 2019 50 Years of the 50p coin S.H62A Gold Proof, Reverse: Britannia design by Christopher Ironside, similar to the 1969 coin, now with spirograph-type Privy Mark to the right of the 50 and with letters A to G now appearing on each point of the coin. FDC in the Royal Mint box of issue, with certificate and booklet describing the origins and trials of the first 50p coin, the background to Decimalisation and the coin's designer. Certificate number 170 of just 310 issued, with only 300 in this format

Estimate: 700-900 GBP