Steve, WRL stands for Westland Reproductions Limited and, as the name suggests, they make reproduction coins. I think they use a process which involves sticking the 2 sides together. The coins are generally sold on card backings at castles, tourist attractions etc. Sometimes of course, they get separated from their original packaging. You're not the fist to ask about WRL coins, and I'm pleased we spotted it before you put it on ebay and potentially sold it to a novice for more than it's worth!