U.S. Army Air Compressor. This is from the Viet Nam era, I believe, as the last recorded service records were from 1980-81. The unit ran when the owner got it but hasn't started it in 30 + years so I'm guessing it's going to need some minor TLC to get it running. Other than an air filter I do not know of anything else it would need besides fuel. Message me if you want more pictures or more info. Local pickup only but willing to deliver within a 50 mi. radius of Troy N.Y. if full price is paid and .