Watch List notes:

G Elizabeth II, gold proof two pounds, 2020, 250th Anniversary of Captain Cooke's Voyage of Discovery, head r., wearing tiara, rev. Mayflower, wt. 15.97gms., the bimetallic effect due to the use of red and yellow gold, both 916.7 (S.K62), in case of issue, with certificate, FDC
One of 350 issued.

Estimate: 650 - 750 GBP