Hello,

First time poster here - so please be easy on me LOL

I have 4/5 odd insulators that I am trying to get information on - here is the first one.

It is a brown ceramic insulator that looks - as the title says - like Darth Vador's Helmut. It is in perfect condition - the white on top is a reflection.

Does anyone have any ideas about this one? Any informationwould be greatly appreciated.

Tim