Here is my card which I personally got from Kirby at Twins Fest. The photograph was obtained for me a couple of years later by an old high school classmate who happened to be employed as a building engineer at the Metrodome.
I have no experience with Kirby Puckett's signature but grew up in MN and a Twins fan. Great memories of the 1987 and 1991 World Series including many Kirby moments. Hope you are able to add an authentic item to your collection.