Mail truck olive green paint

[Deluxe Delivery]

I was at the Meyersdale, PA Maple Festival Sunday and saw a Model A pickup in a beautiful olive green color, just what I was thinking of for my huckster. The owner only knew it was "original" and did not know the name of the color. I know anything was possible for commercial bodys, but does anyone know of mail truck green being on another body...or what color I might have seen if it was not the olive green shown in the paint chips. No others seem close.