Found this tank at an antique shop this weekend. The shop has a new owner and I was glad. This shop has had the most awful [high] prices for years. Inventory never changed. I'd go there once in every two years just to see if the people figured out why they weren't selling anything.
There was a Chevy Corvair pickup - cheap plastic toy there I always wanted but it was marked $45 or so. Been there so long the price tag was gone. Got it for $3 from the new owner.
I was happy!!!
Anyhow.... picked up this tank as well. It is all brass [except the gauge] and has measurments for both pressure and volume in the one small gauge. The lid or cap is also brass and has super fine threads and is fitted to hold pressure when snugged down. I polished one end, the right side in picture. its hard to see because the grasses reflection.
I thought it'd be neat on an old engine or garden tractor. Maybe someday I'll find a use for it. Tank was also $3 - less than scrap price.
Does anyone have any idea what it was for?