Wurlitzer Leslie Switch , 3 Position , Ensemble Main & Remote as marked , this switch is more heavily made than the common ones used on most Hammond organs and others , has a solid metal mounting flange to mount on your organ not like most switches which are plastic and always break . I would guess you could use this switch on various organs including Hammond but ask your tech to confirm. The plastic cover has some small chips around where the screws go but I would guess it will still mount ok . Please check the pictures because they are part of the description . The switch is untested and sold in as is condition.