Jack Dempsey Handwritten Signed Letter Addresed To Frank Sinatra Wow. !! The item “Jack Dempsey Handwritten Signed Letter Addresed To Frank Sinatra Wow” is in sale since Tuesday, May 19, 2020. This item is in the category “Collectibles\Autographs\Other Collectible Autographs”. The seller is “theboxingman1″ and is located in Philadelphia, Pennsylvania. This item can be shipped to United States.