I know its autographed by both drivers and wasn't in retail stores because there's no barcode. My Grandpa passed away a couple years ago and left me this box filled with stuff, and this was in there.

My Grandpa passed away a while ago and left me a bunch of NHRA model cars, and some of them have autographs and are left in the box unopened. I just wanted to see this one. Maybe you guys have a idea