The 1989 Donruss set is controversial, due to the number of variations in it. There are no fewer than six variations of the set, all minor. But there is no effect I can find in the value.
1989 Donruss variations hinge on the presence or absence of a period after the abbreviation “INC” and the number of asterisks in the line “DENOTES LED LEAGUE.” This makes for an interesting and (usually) inexpensive curiosity for completists to chase in an overproduction-era set, but it typically has no effect on the card’s value.
David Farquhar is a computer security professional, entrepreneur, and author. He started his career as a part-time computer technician in 1994, worked his way up to system administrator by 1997, and has specialized in vulnerability management since 2013. He invests in real estate on the side and his hobbies include O gauge trains, baseball cards, and retro computers and video games. A University of Missouri graduate, he holds CISSP and Security+ certifications. He lives in St. Louis with his family.