Game Time, Ltd. of Marietta, Ga, issued as an update to its Classic Baseball Board Game a 50-card set untitled "Travel Edition". Cards measure 2-1/2" x 3-1/2" in the same format as the first release, though with yellow, rather than green borders. Numbered from 101 to 150, the "Travel Edition", besides updating player trades and showcasing rookies, offers several highlights from the 1987 season. All new trivia questions are found on the card backs. It was reported that about 50,000 of the set's 150,000 press run was mistakenly printed with green, rather than yellow backs; the green-back errors sell for a premium. - 2006 Standard Catalog of Baseball Cards, 15th Edition.