The Turn Of The Century Electrotherapy Museum http://www.electrotherapymuseum.com How To Make 1890s Hard Rubber/Ebonite/Vulcanite Washers... ...in 2008 Looks like a Victorian washer! It evolved from one of these Which was derived from one of these... Which was cut and chiseled from one of these! 1950s? Bowling Ball:  $8.52 at a local thrift store/bazaar 2" Hole Saw:  $14 at the hardware store Making a vintage 1890s high voltage insulating washer out of a material no longer available for decades:  PRICELESS!!