I'm answering my own questions
I removed the survivor clip from the car and examined it under a strong magnifying glass after cleaning it with soap and water and it has a slight gray hue to it (definitely a dried out phosphate look) and I gave it the finger nail test.
Painted surfaces, even slightly oxidized, still feel smooth to the nail but the phosphate surface has more granular feeling to it. Kind of like the feel of dragging your nails across a black board.
I'm going with phosphate finish because I have no doubt that is it.