Watch List notes:

Tristan da Cunha Five Pounds 2021 85th Anniversary of the Year of the Three Kings 5oz. Gold Proof Reverse: portraits of George V, Edward VIII and George VI each within a wreath, with crown above. FDC in a Harrington & Byrne box with certificate stating a tiny mintage of just 10 pieces

Estimate: 7500-8500 GBP