The center one is a chevrolet/buick mag style cap. Some one has glued on a pontiac center(not original)/ If you can peel it out there should be a bowtie underneath.
If it is plain with no bowtie then it is from a buick
Era 1965 to 1967ish
14 "
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Beaumontguru
MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH. The other one has a longer roof.