During the 1970's there were about three different Fog Lights that had those same "eyebrows" like the Marchals. One of them has this metal pinhead right in the middle of the lens.
They aren't worth much, about $20 each, and you can find them at swap meets, or on old RVs, etc. They do look good, and if you want something to drive with, I'd go get a set. At a distance, they look just like a set of Marchals.
You might get points off at a car show, but like everything else, that's up to you, the owner.
Paul N.