National Hollywood Flipper Hub Caps Set A

National Hollywood Flipper Hub Caps. I was told they were for 15" wheels but you make your own decision on what they are for. Sticker on these say that they fit 37 to 47 Chevrolet, 37 to 38 Oldsmobile and 37 to 39 Packard. I don't know that this is true but that is what they are marked.
$450 plus shipping