1969 Camaro (COPO) steel wheel paint

[69Tom]

I was wondering if anyone could enlighten me on how the stock steel wheels were painted on a '69 (the wheels used with the dog dish hubcaps).

Only half was painted the color or the car, correct? Should I use a clear coat over them to protect the paint? Should it be sanded down and more than one coat of clear used?

I'm just curious as to how much time was spent on these. I'm guessing it wasn't much, but they were also using a one step paint, so there was no clear to deal with. Wondering how people who do concours restos treat them now....