[Houdini] McAdow, Dudley. Letter to Houdini from Kellar and Thurston?s Manager. Dated August 9, 1917, and written on McAdow?s letterhead, he writes to Houdini asking the magician to visit his office on Wall Street, and comments about Houdini now being a ?movie actor? and great magician, stating that ?you certainly are in a class by yourself.? One 4to page, signed, ?Dudley McAdow.? With original mailing cover addressed to Houdini in McAdow?s hand.