This is an ORIGINAL Trico Model A Wiper Motor, model RCX-1 or CX-1 which was later replaced by the more common KCX-1 wiper, used on most closed cars with straight windshields from 1929-1931.    This one is clean but not operational; some parts are probably missing.  Included is a rebuilding kit for the KCX-1 wiper – some of the parts (gaskets, etc) are interchangable.   Will need some work to get operational, but if you want an original wiper, this is it.