Hi, serp and thanks for your kind answer.
I bought it at the States, via eBay. I also asked the seller and he answered me... I got the full public address... it was glued inside the protection of the coin...

Thanks again for your support.
Rui
Hey ct1aic,
Did you create it yourself with serpcoin software? If so there is a file saved (named addr.sav) which stores just the coin # and the full bitcoin addresses.
I know there are a few people who were selling them on ebay put together already. If you bought it that way you will need to contact the person you bought it from. I sell them as Do It Yourself kits only so, unfortunately, I can't help you there.