Head Light Lense

Thanks Pete. Now what and why are their 2 different lense for the Cords? I'm far from an expert on the lense used on the cars. Another member has told me nrealy every part of the Cord has 2 different parts and some were redesigned as many as 5 times. So knowing with certanity what came off the assembly line is almost impossible.

As I understand it:
The correct factory Cord lenses are numbered 3900 or 3387.
The number is on the inside of the lens at the bottom.
NOT easy to come up with originals.
Pete

What is the differences in the two head light lense for the 810 & 812 Cord ? One number is 3900 and the other is I think 3840 but not really sure on that number.