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!

Please click on the following link for more vintage technology.