Proof of work. Alive after 30+ years of neglect. 1965 Coleman 220F. Good to go for another 58 years, scars and all. 
Discussion
Planned obsolescence is terrible. Nice to see some quality products
This thing hung on the porch of a hunting cabin exposed to the elements, unused. I completely disassembled and cleaned each part over the last few days. Fired right up.
That’s great! I read about the centennial light bulb today. It’s been burning since 1901, and almost never turned off…if only consumer products were like that
I think quality and durability will be demanded again. Right now it’s a premium instead of the norm. You?
I have the same model and can’t get it to hold pressure. I changed the pump. When I pump it up pressure builds but bleeds down quickly. Do you have any guess at what it might be?
Easiest way to find the leak is to run the pressure up and submerge the fount in water. It’ll present itself immediately. Probably an easy fix too.
Most likely culprit is the gasket on the filler cap. Next bet would be the valve assembly needing a little tightening.