Is this a 4 cyl. Chevy tire pump? In one of the G&D's from years ago I think a tire pump very similar was described as early Chevrolet. If not, I guess it may be aftermarket. It is two stage.
The following is cast on the round circular pump top:
GOE A A SIMPLEX The GOE could be COE.
It is 19 7/8 " tall from the base to the top of the handle; the handle is 7 1/2" long. It pumps well but the check valve leaks back. It's for sale if anyone is interested.
Here are some pictures if they post:
Tire pump 1 Tire pump 2 Tire pump 3 Thanks!