I have found a double headed ten pence piece that is dated 2000. Could this be genuine. I have looked closely at it and cannot see a join. It has been through a machine that checks for authenticity and it didn't reject it. If it is genuine could you give me an idea what it's worth.
Yes it is possible it is geuine, but it is not probable. Post pictures of the coin, close-up and in focus and then maybe can help you determine if it is genuine or not.