Britannia one ounce gold coins are issued by the Royal Mint and have a face value of Â£100. The first Britannia was minted in 1987. In 2013 the Royal Mint decided to produce the 1oz gold Britannia in 24 carat, as opposed to 22 carat. The actual gold content remains the same however. ATS Bullion, London's West End bullion dealer, is an authorised dealer of gold and silver Britannia coins. These coins also benefit from being Capital Gains Tax (CGT) free. Please note that the date of the Britannia you receive may vary, but all coins will be in a good condition.