Mintage figures and valuations appear to vary across sites, so it may (or may not) be a rare coin.
Hope this helps.
http://www.facebook.com/NumismaticsUK
I'm not an expert in any kind of coins, but I reckon I'm good at research and will do my best to help. Feel free to tell me my identifications/valuations/gradings are wrong. It's the only way I'll learn.