Quick Look: 1991 Pro Set ‘Special Promotional Sample’ Stamped Promo Cards

My memory may be off but I am fairly certain that I was given one of these stamped 1991 Pro Set cards upon visiting their booth at the 1991 National Collector’s Convention in Anaheim. I want to say it was Randall Cunningham’s base card. Or maybe Jeff George. All I know is that I was disappointed it wasn’t Emmitt or something more “valuable.” In the years since I have only seen a handful of these cards pop up. The image below of Rocket Ismail’s card was one I found in a box of various early 90s “hot” cards in sleeves, picked up at a thrift store in Van Nuys, CA. As of now, it is impossible to say whether Pro Set stamped the entire series one set or just certain players and exactly how many of each were issued. I do not believe that any more than two copies of any player have been confirmed. Because of their non-descript fronts, I turn over every 1991 Pro Set single I find mixed with other promo/oddball/hot cards of the time.