Mike ...
its Silver and Bronze in your sample too.
maybe a lil orange'r looking due to light/angle.
the pic i posted captures it best.
I had a color shot of the real 67 Knafel Bird - bit its on a crashed box.
Will work on finding something if i can.
but anyways
i posted 2 color shots of the 68 White Green Gold Knafel Bird , De-Lettered.
Here is 1 more with tell-tale ghost shadows visible in the paint.