Sold as a separate issue with bubble gum, this 108-card set was issued in three-card panels that measure 3-1/4" x 5-1/4". Each individual card measures 1-13/16" x 3-1/4" and contains a small player photo alongside a series of black dots designed to be scratched off as part of a baseball game. Cards of National League players have a green background, while American League players have a red background. While there are 108 different players in the set, there are 144 possible panel combinations. An intact panel of three cards is valued approximately 20-25 percent more the sum of the individual cards. - 2006 Standard Catalog of Baseball Cards, 15th Edition.