Let these two insulators go yesterday on account they aren't easily removed from the sealed metal casing below. Found out from other collectors on Facebook inside the metal casing is a high PCB level oil that GE used that is extremely dangerous for the environment. Wasn't about to deal with that. But I did give a couple collectors the sellers information so they could possibly work out a sale. Heard there are only a hand full of these units out there that still have their insulators attached.