I see a lot of residue where the coil assemblies are riveted to the base, like melted insulation from at least one of the coils. Those point assemblies look like they're permanently attached- - - -no way to remove the movable contacts for cleaning. Earlier versions were assembled with screws, not rivets. Regulator points are silver, not tungsten like ignition points, and they operate with a slight wiping action so they self-clean. Filing them creates scratches that cause them to stick instead of wipe.
Jerry