This is a new old stock wiper motor that is Trico brand and part number CHSM 1-18 and comes with original Trico box.  This fits the following; 1960 and 1961 Rambler and Ambassador   Part is new never used and in excellent condition.  Lever moves freely but I would advise disassembling and replacing the old grease with new grease as this has a tendency to get hard over the years of long storage.