[ProtectOurFreedom]

Those are called "American Mags" -- they were about the only design of custom wheel available in that era. You didn't find custom wheels at every Tom Dick & Harry tire store like you do today. You usually found "Rally Wheels" on Chevy sport cars which were stamped steel with a slot and a small hub cap:

CAD and CNC machining has made it so easy to turn out a gazillion style of wheels these days.

[lgjhn23]

“...Those are called “American Mags” — they were about the only design of custom wheel available in that era....”

Yep. Quite familiar with them...one of my favorites. IMHO, they’re still one of the sharpest-looking wheels out there. I’ve considered a similar set for my ‘67 Charger but I got the original caps with the chrome spinners in the center that look good on her.