Capacitor Rebuilding

[vts1134]

Forgive me if this is in the wrong forum...I didn't quite know where to put it.

I am working on a television/radio/phono console and I came across the capacitor below in the radio chassis. I've never seen a capacitor like this one before. Has anyone here seen one of these? Is it tar filled? I'm trying to figure out how to rebuilt it. I can take a dremel to it and cut it in half, but I would much rather slide it out of its paper housing like I can with small single section axial electrolytics.

Can anyone offer any insight?