Technical what is this, a fuel pump?

This came with a bunch of Studebaker parts a friend just bought. He got the gauges posted earlier for a McCullough supercharger and a VS 57 in pieces plus a lot of items we are trying to identify. Thank you

 

It's a Knuter valve.

 

That is a vacuum powered air pump for auto leveling or air shocks.

 

Odds are it's probably not a Studebaker part. HRP

 

BJR hit it, I have several of them.

 

THX all-lots of odd stuff in this hoard