2021 Queen Beast Completer 1oz Silver Proof Coin Royal Mint With COA. Dispatch within two weeks thank you. The item "2021 Queen Beast Completer 1oz Silver Proof Coin Rare Mint With COA Sold Out" is in sale since Wednesday, May 5, 2021. This item is in the category "Coins\Coins\British\Proof Sets/Coins\2000s".The seller is "golden-ratio-plating" and is located in Sheffield , South Yorkshire. This item can be shipped worldwide.