Here's a Buster Keaton signed album page that a dealer has up right now. How does this look? It's c.1932 and includes the signature names of Keaton's actor pals at the time...Lew Cody and Ralph Bellamy. The references seem to be made to a land yacht that Keaton and Cody owned together that was christened the "S.S. Damifino" (also the name of the boat in Keaton's silent "The Navigator". If real, the name of the boat would also have been in Keaton's hand.
