One of several regional sponsors of player disc sets in 1976 was the Pittsburgh area dairy store chain, Isaly's, and the Sweet William restaurants. The discs are 3-3/8" diameter with a black-and-white player portrait photo in the center of the baseball design. A line of red stars is above, while the left and right panels feature one of several bright colors. Produced by Michael Schecter Associates under license from the Major League Baseball Player's Association, the player photos have had uniform and cap logos removed. Backs are printed in red and purple. The 70-player checklist is unnumbered. The fronts of these discs are identical to the Dairy Isle discs. - 2007 Standard Catalog of Baseball Cards, 16th Edition.