Early cadillac tire pressure gauge

Hi all... here's a neat find. It's a gauge head for a factory Cadillac tire pressure guage (factory accessory item they might have issued with new cars). Don't know the year of issue, but I'd guess somewhere between the 20's and 50's. Yeah, I know-- that's a safe guess, ha. I'm leaning toward 20's or 30's??

It says "CADILLAC Cadillac Motor Car Co. Detroit" on the front panel. Made of nickel-plated brass.

Just the head, not the entire gauge assembly (I think all that might be missing is the lower hose and the tip that fits up to the tire valve). If you have a broken gauge, then this might be the ticket.

Not in perfect condition, but not horrible either... and might very well still work? No way to test. Cool trinket for your glove box, desk, or just as a converstaion piece.

Asking just 15 bucks plus mail from California. If interested in purchasing, then please e-mail me direct at blown394olds@yahoo.com