I acquired the signature from Kirk in person when he was the manager for the Diamondbacks. I gave him a gold sharpie to use for I knew it would be
KIRK GIBSON SIGNED 1976 MICHIGAN STATE SPARTANS MEDIA GUIDE/ CFB HOF 2017
SC - Carolina Arts
Autograph Warehouse 101204 Kirk Gibson Football Card Michigan State 1990 Collegiate Collection No 76
Michigan State
Trading Card Lots, Sports Trading Cards, Sporting Goods - PicClick AU
Michigan State
Kirk Gibson Gallery - 2003
Michigan State
Carolina Arts by Carolina Arts - Issuu