This is an original and NOS (new old stock) ENGINE STOP (run / off) switch made by CEV found on many bikes. I have seen them on a few 1980 black and gold super sports I have owned as well as some earlier silver/blue super sports...
NOTE: I don't know why I didn't pull off the red wire shown before taking a photo I guess I was just in a hurry.... Any switch ordered will not have any wires attached.