Dear enthusiasts,

I grew up with both the Star Wars movies (in special edition) and the Back to the Future movies (on VHS). Last year I had a Luke Skywalker figure signed by Mark Hamill which was great at the Star Wars Celebration.

I would like to have one from Michael J Fox. But due to his health I doubt hell ever be in Europe on a convention again. So I found this signature on eBay. They say it has a CAO but can I trust it?
http://www.ebay.nl/itm/Michael-J-Fox-Retour-vers-le-futur-Autograph...

What do the experts say?

Thank you for replying!