Scroll through the 1957-58 Topps basketball set and you might not even give him a second look. There’s Bill Russell’s rookie card. Bob Cousy’s, too. Bob Pettit. Paul Arizin. Tom Heinsohn. Frank Ramsey. Cliff Hagan. Neil Johnston? If you’re a serious student of basketball history you might know him. If not, it’s time you did. One of the best scorers in the game during his eight-year career, Johnston’s rookie card is a hidden gem.