My early FiberFab doesn’t have an ID plate either. It does have either a serial number or a part number on the firewall under the hood, below the left (driver’s) windshield wiper, or thereabouts. I could make no sense of it either…
Early FF TDr on 69 VW pan
Slowly coming back from the ashes...
Mine wasn’t mounted anywhere, the PO/builder had put it into a notebook of pictures and paperwork about the car.
Here’s the picture of it I posted elsewhere a while ago, and as you can see the model was left blank. I’ve yet to see, or rather look for, something on any part of the car.
I only know the metal plate matches what’s on the paper title.
After the car was completed it was required to be inspected by the Sectary of State. Once it passed inspection, a SOS number was issued. Both are shown on the title. I mounted both to front of firewall.