So don't pay ridiculous amounts of money for the thing. No one should be paying several hundred dollars for an autograph regardless of its authenticity. I face the same problems many of you do when it comes to autographs. Lucy tends to sign differently on different days, and I have gotten about 10 autographs directly from her in Burbank and New York and frankly, the first one I got in Burbank looks nothing like the last one I got in New York. I know all the ones I got are real because I was standing there each time Lucy signed.
Answer is no.
And in all probability, neither can you. So be careful about what you buy. She compared the way some people react to online auctions as being akin to a gambling problem. And frankly, I think she's right. The current frenzy surrounding the online auctions is one which should send you running in the opposite direction.