I bought a set of kelsey hayes wires for the 1953 Skylark...so i think. How do I know if they are legit or not? Stamp says Kelsey hayes USA, 15x6 L...a logo on there. I have the knock off centers as well. All appear to be original. I just want to make sure they are legit so I know to put them on my car or not! Its not a 53 Skylark! Just want to know how I can tell and what year they might be. Thanks a lot for any help!