Hi everyone
I am new to this hobby and am trying to educate myself quickly about thing like autopens, rubber stamps , forgeries etc.
I bought an autographed lyrics page signed by Billy Joel. I bought it from a UACC dealer (AACS Autographs). I read that UACC dealers are supposed to be fairly good but I am not sure about my purchase as I have checked other Billy Joel autographs and they seem slightly different. I know that autographers can change their style a bit over time but any opinions or resources that anyone has would be appreciated. Here is the lyric sheet I purchased.

Thanks

http://img510.imageshack.us/my.php?image=billyjoel1ld9.jpg