Weird Horn Contact Roller

[Snowdog]

In doing the wiring on my '61, I've pulled off the horn contact. The wire was broken, and the contact looks different from every picture I can find on the Google machine.

Am I able to disassemble the contact? How can I get the leftover wire out, and affix the new wiring?

[nutz]

drill it out
might be able to solder it back in