This single Proof decimal coin has been taken from the Proof Sets of the respective year. Over the years some of the coins will have toned a little, but that does not. In October the 50p coin joined the 5p (shilling) and 10p (florin) coins in A full list of Royal Mint commemorative fifty-pence coins can be found below. Great Britain 10 Pence Coin · Customers also viewed these products · Special offers and product promotions · Have a question? · Product description · Product.