Separate option: Black-out hood treatment.
The paint code would be 2 digits such as the M5 that is on my son's 68. M=Wimbledon White 5=Black-out hood treatment.
Had nothing to do with GT status.
According to his Matri report only 8,067 68s came with the Black-out treatment.
It would have likely been labeled as on of the Exterior options like the Pin Stripe that was also available separately.
If you need it some where I have the measurements for the hood stripes.
'68 J code coupe back in H.S.1st car. Now 65 GTFB
Daughter & I built her a '66 coupe feature car in 8/04 MM & '05 Meguiar's winner see it @ Meguiars.com Made matching pedal car for her daughters.
Built a '68 j code coupe with oldest son. Made matching pedal car for his sons.
Built a '67 FB with youngest son. Yes I'll be making a matching pedal car when he has kids.
Future '74 TR6 Project for Wife