Engine colour
I have seen many original SA and VA engines, and the colour closest to the original was , as you have noted, GN-25. It is not quite as intense as Kelly green, but it is not GN-29, which is the bluish-green you speak of.
Green is made from mixing blue and yellow together. GN25 is when the primary base colour is yellow, GN29 is when the primary base colour is blue
Lee Jacobsen
Green is made from mixing blue and yellow together. GN25 is when the primary base colour is yellow, GN29 is when the primary base colour is blue
Lee Jacobsen
Or Mid Brunswick Green