Reportedly used on a Johnson antique outboard motor PR in the late 1930s.   Has a Keller cable mount and the accessory deep fuel bowl.  From the estate of an old time racer in SoCal. As found condition. You will have to go through and clean and adjust it.  All the right pieces are there...just the way you like to see them.  Look at the photos and email with questions.  Thanks for looking.