Did you even know it was gone?  Maybe, maybe not, but the truth of the matter is that not only was the Blackwing 602 Jones's favorite pencil but it was also the favored writing tool of author John Steinbeck and musical theater genius, Stephen Sondheim.  Anyway, there's a wonderfully informative article about the fortunes (and misfortunes) of this very popular pencil in the current CNNMoney online news source.