Here's a 1976 Topps Larry Little #33 BVG 8 blankback proof variation.  Great card of the Hall of Famer, and member of the only undefeated football team in 1972.

Initially acquired from the Topps Guernsey's auction, this original proof measures 2 1/2" x 3 1/2" and was used during the production process.  It features a pink Dolphins logo design consideration, with the final issue becoming a white version.

A rather unique team collectible for your proof, Hall of Famer, or Dolphins card collection. The card comes encased in a Beckett BVG case, but unfortunately I do not have the card which is just shown for comparison.