Watch List notes:

Fifty Pence 2012 London Olympic Games - Gold Medal Winners Coin - Tennis, Gold Proof Piedfort FDC NGC PR69, in June 2019 (LCA 165 Lot 1510) we sold a full set of 11 of these Gold Proof Piedfort 2012 Fifty Pences and the vendor of that set had obtained from The Royal Mint mintage figures (actual rather than issue limits which may be smaller) which showed just 25 of these Tennis Piedforts exist

Estimate: 3400-4000 GBP