So, I have decided to take on this set. As a kid, I fondly remember opening many packs of normal 1991 Topps...so the thought of assembling a rare parallel set is extremely appealing to me. I know there are a lot of fake out there...so I did some research before buying my first example. I decided to buy a common that looked like a good example and I'm happy with the purchase (purchased a Griffey Sr.).
Based on my online research...and stamp appears to be good. But, since this is the first example I have seen in hand I wanted another set of eyes to verify that it is authentic. I have posted a photo of the stamp. If someone could check it out I would really appreciate it. Thanks.