Points ignition wiring question

My 67 Dart is purely stock with a 267 and I want to leave it that way. Of coarse it has the points ignition. I've owned the car for over a year now and just noticed a disconnecred wire while I was working under the hood on an unrelated problem.
There appears to me a capacitor bolted to the intake through the coil bracket with a wire hanging there attached to nothing. It has a round spade connector and reaches either terminal on the coil. The wires on the coil are tight so I know it did'nt just fall off, someone left it off on purpose or by accident? Should this wire be connected? if so which terminal? I know some of my past mopars that had electronic ignition had one of these but my 67 Barracuda with the slany 6 does not. I'm wondering if this capacitor should'nt even be there, maybe it came with the coil from an electronic ignition car that someone replaced before I got it. The car runs O.K. but maybe with this disconnected I'm burning up my new points!
I've looked in my service manual and do not see mention of it nor do I see one in the electrical diagrams. So what gives?