The Turn Of The Century Electrotherapy Museum

Tar + Paraffin Wax Insulated Pancake Coil

Zywiec - Prized Original Polish Beer.
Oh...and a Pancake Coil insulated with Paraffin Wax and Tar!

Underside of coil - note the glass stir rods used to raise the coil from the bottom of the coil

Primary Coil added.  The insulation looks more black than the EPDM rubber!