A little bit long for a reply but some themes are never get to old ...
I found a Pic from the 427 Cobra SuperSnake Twin Paxton Cobra with a better view
on the 1L DLR 4101 Plate ... it is not from the R&T Test, but the source is unkown for me

the other obersavtion is not about a 013 MFG Plate, but it is 5s319 (the 66 Prototyp) with
a 14B MFG 014 Plate .... as far as i know is 014 directly a Ford Manufactur Number
so i wonder a little bite about this, any ideas from you to these theme
The Car also appears on the Car & Driver Yearbook in a big jump


Greets from Germany