Word of advice from your friendly neighborhood GB collector…
Be SUPER careful when it comes to purchasing autographs online, especially on eBay. I would say that likely 99.99% of all “authentic” autographs listed on eBay are, in fact, NOT authentic. In fact, personally, I would not purchase such an autographed item from eBay, period.
Even if sellers say it comes w/ a “certificate of authenticity”….that's basically like saying "it's authentic…i even made a piece of paper that says that i say it's authentic!"
Not to rain on any parades…just make sure if you do purchase something like this that you buy from a reputable dealer, etc.
That makes ALL the difference in the world. (^_^)