The September 1992 issue of Baseball Cards Magazine is special because it deep-dives into Upper Deck’s earliest years. One of my favorite things they included was this checklist of all the sets, but primarily all of their promotional-sheet issues.
You can read that they credited Don Butler, with the assistance of Jeff Kurowski and Nigel Spill, with putting it together for Sports Collectors Digest.
Here are two of the sheets pictured in the magazine.
