http://cgi.ebay.com/Frank-Sinatras-OWN-Golf-Clubs-by-JOHN-LETTERS_W0QQitemZ7250836049QQihZ015QQcategoryZ1152 80QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
It is true Sinatra used John Letters clubs. The full story is in the John Letters website. That said, how do we know these are Sinatra's actual clubs? Guess you gotta believe...