If you look at the one I found, the tire gauge is really narrow compared to todays cars that have the retro spokes. Not saying it'd be worth digging out to reuse, but maybe as some sort of ornament.
I think I'm gonna go take a closer look at it this morning. Don't really want to with the rain and all, but given this area's propensity to flood and flood hard, it may not be there after the storm clears. Will post pics when I get it out of the ground.