[BobC]

Look at the '80-'81 Topps basketball set. Though the cards normally come as three separate mini panels/cards, with perforations, I believe the unseparated three panels are considered as complete, actual cards. Assuming so, in Bird's case alone, he's on one three panel card with Dr. J and Magic (the big rookie card), but also appears on other three panel cards with Marques Johnson and Jack Sikma, another with Bill Cartwright and John Drew, then again with Fred Brown and John Brewer, and then at least one more with Scott May and Jack Sikma. Oh, and he also appears on a Celtics team Topps Pin-Up card from '80-'81 as well, if you count that. So that's at least 5 (maybe 6) different Bird rookie cards from that one set/year. And there could be even more different combo cards I didn't quickly come across. Also, I didn't check to see how many there may be for Magic, he could even have more than Bird for all I know.