With the help of a member of the board here who identified the random old coil I had in my parts box as an original 1972 Pontiac coil, I was able to test it, clean it up and install it.
https://www.yenko.net/ubbthreads/show...e/0#Post429806
I then tossed the Pertronix coil that had been frying my points, into the "extra parts" box.
Here's the new/old "425 BR" coil in place.
And the third set of points I've replaced in the three years the engine has been up and running.
Both contact surfaces on the lever arm pad and the base pad have been crystalized to the point that they wouldn't conduct electricity any more. (Ignore the dust - I had it sitting on the sanding table when I was prepping the coil for paint). I guess I will stick to the stock ignition parts from this point on and forget the aftermarket crap.