I think reverse lights were standard on the '53 Chrysler, I don't think that's what the OP's tail lights are from
So they are on feebay under the heading, "NOS Unknown tail lights bezel lens Prototype ? Concept Car ? " and are described as being from a car designer's estate in Michigan. There are 24 pics there and you can clearly see that the inner socket housings are hand fabricated. Interesting.
Current bid is at $230.00 plus $10.00 shipping. They are beautiful no doubt, but kinda spendy if used just for wall hanging or to sit, unused in a display case. Your results may vary!