The 1991 Fleer Pro Vision #9 Derrick Thomas Kansas City Chiefs NFL Football Card is a vintage sports trading card featuring the iconic Derrick Thomas from the Kansas City Chiefs. Manufactured by Fleer in 1991, this original Pro Vision insert card is made of card stock and is in near mint or better condition. The card is part of the 1991 Fleer set and is a base variety, making it a highly sought-after collectible for football fans and card enthusiasts alike. Its historical significance and association with a legendary NFL player make it a valuable addition to any sports memorabilia collection.