Within the wide world of sports card collecting, there are niches and circles that take collectors a step or two further than the average hobbyist. Take, for example, the niche of collecting Don Mattingly cards. While there is certainly nothing odd about that, dig deeper in this niche and you will find a circle of collectors not only after Mattingly’s “regular” cards but also many other varieties, including: printing errors; test-proof variants; Score Magic Motion Trivia Cards with information about Mattingly Trivial Pursuit game cards with Mattingly’s name printed as an answer to a trivia question; and cards where Donnie Baseball makes a cameo appearance in the background (including his face on a fan’s shirt on Joe Carter’s 1994 Pinnacle card).
All of these and more are on, the checklist contains more than 10,000 different Mattingly cards, and counting. It is not for dabblers.
