Where can I get these ignition points from?

I missed the Mallory part there.
But original equipment Mopar dual point distributors were called "Prestolite" in the shop manuals, and were actually from Ford.
That doesn't bother me nearly as much as the Rochester carb I found on my 318 in a Dart in 1980.
I changed that out before I drove the car off the PO's place.
That was probably why it didn't start or run.