The 2025-26 Topps Signature Spencer Dinwiddie #SS-SD Purple Refractor /100 is a limited edition basketball trading card featuring an autograph from Spencer Dinwiddie of the Dallas Mavericks. This card, part of the Manuscripts insert set by Topps, is a highly sought after collectible item for fans and collectors alike. With a print run of only 100, this card showcases Dinwiddie's signature on a standard-sized card stock, making it a valuable addition to any sports trading card collection.