Hi, all. Not sure this is the right forum, but I thought I would try. I am looking for a vintage oil-free or clean air compressor, and I would like to know what to look for in the way of a manufacturer name and model number. I know I can buy one new pretty easily but I have no idea what to look for if I want one that is 60 years old or more. I would actually be using this thing to blow out about 200 feet of hose that runs between the house and stock tank for watering horses. At 9000 feet, we face freezing temperatures 8 months out of the year and I am tired of carefully draining all 200 feet of hose every time I fill the stock tank. I may settle for a modern compressor but I prefer the chug of an antique one over the raucous howl of a modern one, and besides, I wouldn't mind having another piece of vintage machinery that actually performs something useful.