This is what appears to be an NOS 63 64 Chevrolet full size impala  am fm delco radio faceplate. There is evidence it was mounted on a radio and MAY be a new car removal for unknown reasons. Chrome looks great without any pitting. The band selector may have been modified as noted by another user but I am unfamiliar with what would be correct. Keep this in mind when purchasing.  These are not available reproduction from any supplier to my knowledge.