Is this real ?? my mom got it at a garage sale.

[crispystl]

so my mom bought this football for a buck at a garage sale for my lil brother he's only ten. So he sends me an e-mail asking me if Jim Kelly was a football player or if Jim Kelly was kid that previously owned the football and wrote his name on it. I laughed my ass of but then when I saw it. I believe it could be an authentic signature. It looks just like all of his signatuers on ebay. But i have no Idea here is a pic