Harold, I remember that cable. It was standard NM and was made by Phelps-Dodge. What was equally unusual about it was that it often had a brown wire instead of black in it.
Cadillac Cable also made a version that had either green or brown jackets. No particular reason; they just felt like being different I suppose. I would hate the fact that you never knew what color it was going to be until you opened the box.
Sorry for the side track.
