This is an interior shot of a basic "K" type controller of a streetcar. This controller happens to be on Montreal Observation Car 4. This is where the movement of the motorman's arm interacts with the electricity. As the motorman moves the controller, more electricity is allowed to flow through the motors.

Photographed by Xian Clere, April 10, 2004.
Added to the photo archive by Xian Clere, April 11, 2004.
Railroad: Connecticut Trolley Museum.

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