You are welcome. It's very hard for me to decide what version of pertronix you have. I, II or III. See if the label says.
Your distributor and surrounding area is very dirty/rusty. It needs to be pretty clean. I think debris has fallen on it while you were messing with it. Not your fault.
DO NOT TAKE THE DISTRIBUTOR OUT.
I am NOT a Pertronix expert or even close. You don't have a III, you have a I or a II, I'm guessing a I (original Pertronix). If it is, It's gotta go in the trash. Get a II.
This seems to be the one. Double check.