With over 20 years in the Coin business your are in safe hands. Please see our other coins and coin accessories for sale. Metal Quality 22 Carat 916.7 GOLD. The item "1990 Great Britain Gold Proof 1/10th oz £10 Britannia BOX + COA" is in sale since Monday, May 21, 2018. This item is in the category "Coins\Bullion/Bars\Gold Bullion\Coins".The seller is "cambridgeshire_coins" and is located in CAMBRIDGE, Cambridgeshire. This item can be shipped to United Kingdom.