[LMH]

Original back in the day would have been a Lucas sealed beam. (Round Lucas insignia in the middle) They’re not too rare and come for auction from time to time on eBay. I’m
not sure how “correct” you want to be but that’s what you’d look for if you want be accurate to original. Also, many owners changed to Lucas Tri-Bar bulbs and they look good. Just make sure they’re for US market when buying.
Larry