Extremely rare and very likely unique pair of blank-back proof cards from the 1976 Topps Football issue featuring Hall of Famers Fred Biletnikoff and George Blanda. While at first glance the offered cards may appear to be nothing more than blank-back versions of the final-issue cards, close examination reveals that they possess a subtle difference that will be of great interest to proof-card collectors. In addition to their blank backs, the proof cards feature the Raiders team name in green print instead of the red print as on the final-issue card. Each card appears to be handcut and in Near Mint condition. This is an extremely unusual and fascinating pair of Topps rarities that would be very much at home in even the most advanced Topps or error-card collections. Total: 2 cards. Reserve $100. Estimate (open).
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