Not sure as I googled "Rey Mysterio autograph" and had a look at the pics and to tell you the truth I think it would be extremely hard to find out as it's not his real name so it's something that could/would probably change a bit and going off the pics you'd nearly have to be there to see him sign it. Sorry I couldn't be of any more help but google it and have a look for your self..that's a tough one. And I know my self that my signature is very rarely the same depending on the situation.