Welshguy, No, I'm afraid I look for the bottom end of the coin market on e-bay and try to identify them! I've had some ggod ones too ( and some rubbish!) I'm pretty certain the coin shown is, as shown on the Colchester web site, belonging to Ferdinand possible a half real as you said, and c.1455 Guest, can you post a picture? As a guest I couldn't manage it!! Wonder why?