The '29 Phaeton I recently bought has wood wheels. The hub caps are unusual. Instead of the normal 3-1/2" diameter screw-on caps with the bow tie logo, it has 3" diameter caps.
The caps have the same design as the 1930 caps (the word "CHEVROLET" is not inside the bowtie), but the diameter is one-half inch less than normal, and the corners are sharp, not rounded like the normal caps. The bowtie is correct -- not just the straight bar you see on most aftermarket caps.
Has anyone seen this before? Does this have something to do with the wood wheels? Are they OEM or aftermarket caps?

Thanks for any help you can provide.
All the Best, Chip