One of only five cards produced, this Herschel Walker promo card was only available at the 2003 National Sports Collectors convention, held in Atlantic City, N.J., that year.
The card looks the same as the base card from the 2003 Donruss set, except that there is an embossed stamp on the front of the card, which reads, "24th Annual National Convention, Atlantic City, N.J."
The stamp is difficult to see on the scan, but it is just to the right of Herschel's knee on the card front. On the back of the card is the 5/5 serial #.
I'm very pleased to add this tough to find promo card to the Herschel Hoard.