I have had this Clemente for a long time. I think I got it shortly after release from a blogger named Trey and even showed it off on my old blog.
Roberto Clemente is one of the few numbers retired by the Pirates. The others include
4 - Ralph Kiner
11 - Paul Waner
33 - Honus Wagner
42 - Jackie Robinson
The 2012 Topps Retired Number manupatches was a card set that featured 50 of the game's greatest players, all of which have had their number retired.