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Vintage Trumbull Porcelain Aerial Knife Switch Single Pole Single Throw SPST 9.8 cm x 3.5 cm
This amazing looking piece of electrical history is a Vintage Trumbull Porcelain Aerial Knife Switch Single Pole Single Throw SPST 9.8 cm x 3.5 cm. Made in Connecticut, U.S, by the Trumbull Electric Manufacturing Company.
There are a few scuffs and surface blemishes but it's in very good condition for its age with a few nibbles in the porcelain and the copper is tarnished.
The knife switch is marked:
T within a circle
708
Trumbull Battery
Switch
Pat. May 18 1909
Approximate Size
Base Length: 9.8cm
Height with switch horizontal: 3.5 cm
Base Width: 3.5 cm
A lovely item for collectors of electrical devices or steampunk!
