Conrail GP15-1 build... JUST DO IT.

[Green_Elite_Cab]

And I've already told you how paint works, black gets (which fades first) painted over blue. There is rust, but there was black first which faded or oxidation occurred. If the blueprint involves black then there is black painted there. Furthermore, why would the rust be perfectly lined out, exactly where the black is.

No, the paint doesn't work that way. Anti-glare panels are new. Just by the fact that there are C40-8s running around without an anti-glare panel makes it more than likely that GP15-1 (which is 1979 vintage) didn't have the anti-glare either.

Whats more, the NIKE GP15-1 would be from this eariler time period, not the later ones.

You find me a "blueprint" from the late 70s that says the nose should be black. you won't.

Its "perfectly outlined" because its a flat surface that allowed the rain water and other corrosive dirt and grime to settle on it. the sides don't rust so much because stuff gets more easily washed off of it. You can see this on old cars.