CAYMAN ISLANDS. Gold 25th Anniversary of the Death of Sir Winston Churchill Proof Set (4 Pieces), 1990. All PCGS Certified. 1) 250 Dollars. PROOF-70 Deep Cameo. 1.0024 oz. AGW. KM-107; Fr-37.2) 100 Dollars. PROOF-69 Deep Cameo. .5013 oz. AGW. KM-107; Fr-38.3) 50 Dollars. PROOF-70 Deep Cameo. .251 oz. AGW. KM-105; Fr-39.4) 25 Dollars. PROOF-70 Deep Cameo. .1007 oz AGW. KM-104; Fr-40.