This compressor was the heart of my bicycle shop for over 27 years....it was already on the property when I took over the shop so I don't have the full story behind it but it is a BEAST! It never let me down. We changed the oil 1-2x per year, replaced the belts maybe twice in that time (belts are still available for it and I have one extra that will come with the beast).
Made in the USA it is truly over-built and that means it is built to last. I wanna say its 45+ gallons. I've included images of the plaques riveted to it in hopes of answering any tech questions you may have about it. It has a drain, heat shields and gauge....we had it set up to run off 220....
I have some of the paperwork; looks like it was purchased in its current configuation in 1988 for over $1000! See images below...
I wish I had room for it at home but I don't and it really needs to be in a workshop where it can be used regularly.