I have a set of five (only four in picture, the fifth hubcap has a small split in seam which has been soldered) NOS, never mounted mint hubcaps unique to a 1964 Chev car that are absolute show quality. I have sold the car I purchased them for. I have seen these sets sell for up to $600US on ebay.
If you are not a "purist" they are also a close match to other similar era Chev models.