Had a pair of the unplated center Cragar S/S. I don't think they were Sparklers. Here's a link to a 1971 Cragar catalog. At that point in time seems that the only thing avaialable was the chrome centers and Sparklers. Slightly off topic but looks like Cragar G/T's were history by 1971?

https://www.ebay.com/itm/Cragar-Whee...4AAOSwnklayVhN

So, there were plain centers and Sparklers ? I'm recovering from foot surgery so it's gonna bit a bit before I can dig them out. I'm thinking these had a fairly smooth gray painted center with a chrome cap ( of course someone could have painted them in the last 50 years ). Hoops are chrome as they should be and they are definitely S/S. At least I thought they were definitely S/S. Aw Hell, I'm not sure of anything anymore.

A friend of mine purchased a new 66 SS396 Chevelle in the fall of 1965 and he ordered a set of 14" x 6" Cragars like these. The rim was chrome and the centers were polished aluminum.

Must be a sign of some sort of mental illness as I seem obsessed with this subject on Cragar wheels. Here's a link to a 1967 ad showing what looks like a S/S wheel with a chrome, natural aluminum and possibly a black painted center?

https://www.ebay.com/itm/1967-Cragar...UAAOSwdzVXnqvz

I got a chance to get some photos of the 15x4s.

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Nice
Have the centers been painted?

Well, that was weird. I posted a reply and it wasn't what I wrote.

The centers have been painted at some point in their life. I'm assuming they should either be smooth and bare or have a shotblast finish. These appear to be smooth.

Is there chrome under the paint?

No evidence of chrome that I have seen.

These might have been the plane aluminum wheels that someone just painted the centers.
The question is why would they have painted plane aluminum centers? I have seen quite a few painted centers and wheels but this was done because the chrome failed.
Thanks for posting.
Bernhard