Jim Creighton's signature would of course be a great find, but do enough collectors even know who he is? As I've mentioned a few times on the board, I live just a few blocks from both Creighton's former home and the Excelsior clubhouse; maybe I'll take a walk over there tomorrow and see if I can find any signed material lying around.
I once had two separate letters signed by Ned Hanlon near the end of his life. I wish I kept them. How rare is his signature compared to other contemporary Hall of Famers?