£2 coin is a winner My mum has a gold coin commemorating the 1986 Commonwealth Games in Edinburgh. What can you tell us about it? Annie Winship, via email This is potentially fairly valuable. The “head” side of your coin shows a portrait of Queen Elizabeth II and was designed by Ralph David Maklouf. If it is one of the £2 coins I am thinking of, and in good condition, it might be worth €600. Do your research if you are going to sell – look at collectors’ online forums, pop to the library or maybe even attend a specialist auction of rare coins to get an appraisal. If using an auction site set a realistic reserve price. List it correctly and let the market decide the price.