That old black cap. The pin has pushed out of the rotor and tip has wore into the brass contacts.
It took a few decades. I purchased a new MSD black cap and rotor.
The same thing will happen to the new cap and rotor if I live long enough.
The cap has been on my C2 for decades probably mid 90's. I remember buying it at Canadian Tire.
The C2 is my go to dist. It's adjusted and I use a steel gear. Mesh looks fine.
I believe the term here is "creep".
So I believe that it is now "a creepy old black cap".