I have a coin that I think may be valuable. Can the Royal Mint confirm if this is the case?

We find that in many instances it is better for members of the public to approach a reputable coin dealer who should be able to provide a valuation. The Royal Mint does not value coins, but it should be possible for you to locate a coin dealer by contacting the British Numismatic Trade Association. You can visit their website at www.bnta.net