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Knife Switch Edison Era Unique Design Spring Loaded Knife !800`s, US $180 – Picture 0
Knife Switch Edison Era Unique Design Spring Loaded Knife !800`s, US $180 – Picture 0

Knife Switch Edison Era Unique Design Spring Loaded Knife !800`s

US $180

  • Canton, Ohio, United States
  • Nov 13th
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A historically old brass and slate knife switch believed to be from the Edison era of the late 1800`s.  Appears to have been used in a laboratory setting rather than an early electrical installation. The single pole knife has a tapered and spring loaded blade that pops straight up when the handle is touched lightly.  Almost an assisted disconnect feature. The thick slate base measures 5 3/4 in. long x 2 3/4 in. wide x 1 in. thick.  Closed (blade down) it measures 8 in. in total length and is 2 3/4 in. tall.  The switch weighs a hefty 2 pounds as shown.

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