I was reading in the MMC Detroit Fastener Guide that left-handed standard lug nuts that came on steel rims with a wheel cover (like 450's) had a copper plating. Does anyone have any reference picture of an original LH lug nut I can use as a reference to re-create the plating?

Detailed question, I know. But I figured someone here has an original set of LH nuts with the plating. Mine are reproduction and plated clear zinc.

Thanks everyone.