Found a Zenith

[Electronic M]

I'll check my parts stash.

One thing to be aware of with coils like this is that they used wax coatings on everything electronic imaginable over the years. If any of that coating was in or managed to get in to the slug/form then it will cement the slug in place unless heated or dissolved by chemicals that may not be safe for the coil... So when a slug sticks, don't force it, HEAT it.