Donruss introduced the Studio line in 1991 and released another 264-card set entitled Leaf Studio for 1992. The cards feature a color player closeup and a large, rough textured black-and-white photo of the player in the background. Tan borders surround the photos. The cards were only released in foil packs. Special Heritage insert cards featuring top players in vintage uniforms could be found in foil and jumbo packs. - 2006 Standard Catalog of Baseball Cards, 15th Edition.