Have this in all my MJs, fits and works great.
Plain:http://macsradiatorshop.com/surge-overflow-tanks/replacment-jeep-radiator-fill-tanks.html
Diamond plate:http://macsradiatorshop.com/surge-overflow-tanks/replacment-jeep-radiator-fill-tanks-375.html
A friend of mine is the Senior Director, Cytogenetics Laboratory at the Greenwood Genetic Center which is affiliated with Clemson. She sent my wife and I those sweat shirts many years ago, I've never worn mine.
HI Don, they say SEIMA 35 310 at the top center of the lens and MADE IN FRANCE at the bottom center. They are normal MJ lights, just intact. :) These are the best pics I could get right now.