1991 Topps Gallery of Champions is a baseball card set produced and distributed by Topps. This was the final release of the Topps Gallery of Champions that Topps produced, ending an 8 year run on the product. The cards partially parallel the 1991 Topps Baseball set. The cards are mini-sized (1-1/4" x 1-3/4") and made of metal. Three different sets were made: aluminum, bronze and silver.