Any opinions on authenticity of this item?  

Seller is: Clubceleb

I asked him where he obtained this autograph and when.  His reply was that it was this:

Hi, I am not sure when my son obtained this autograph. His father and he were avid collectors before he went to College and now I am just selling parts of his collection (with his permission) to help defray some of his expenses while in school. I'll ask him when I speak with him next and find out more for you.

Let me know.

Thanks for your time!