The first instance of this run of metal cards started in 1983 with a single issue inserted into cases of Topps Traded sets--Bronze Premiums. In 1984, a complete set of 12 different metal cards could be purchased in either bronze or silver--Gallery of Immortals/Champions. Also in 1984, the first Pewter Bonuses were inserted into Topps Tiffany cases (later into Gallery of Champions cases), as well as the 2nd release of the Bronze Premiums shown below.
The first three Bronze Premium releases (1983-1985) represented an additional card from the current year's Topps set, while the rest of the Bronze Premium releases (1986-1991) represented a vintage Topps card from the 1950's. In 1995, Topps released a 12-card Bronze Medallion set representing 1960's cards.