According to what I've read on the internet, the entire 250 card set was based on pen and ink prints by T.S. O'Connell. If the name sounds familiar, it's because he's the former editor of Sports Collectors Digest and the guy who took a lot of heat for the whole "Coach's Corner" debacle.
Getting back to the set... I've always wanted to add a few of these singles to my collection and thanks to COMC, I was able to grab a trio of players I collect for under two bucks:
They're not exactly highend cards. In fact, they're printed on thin, white, glossy stock paper and have nothing written on the back. But they're unique, cheap, and are definitely cool additions to my PC.