Michael Jordan's #23. Larry Bird's #33. Both of Kobe Bryant's #8 and #24 jerseys. All of them are some of the most iconic numbers in the history of the NBA. However, not every number gets the same amount of love that heavily used numbers like #3, #11, or #20. The numbers on this list are so infrequently used that only one player has ever worn them in an NBA game. Now, there are a couple of ground rules for this list. First off, along with the NBA, ABA and BAA uniform numbers will also count in this. For example, Taj Gibson was the first NBA player to wear #67, but thanks to Moe Becker in 1947 also wearing it in the BAA, you won't be seeing #67 here. Second, numbers that have never been used won't be here, so there won't be a #58, #64, or a #69, even though I'm told that last one would be nice. And finally, there are a few numbers I haven't included, those being #07 and #09. Those aren't typos, as the Rochester Royals issued both #07 and #09 to Paul N...