Traction Modeling.
This trolley coach layout ws engineered and modeled by the Seattle Municipal Railway sometime in the early fifties, as a display to be used at civic functions. The buses were guided by a slot that "steered" them.

Bill Volkmer photos from an Ohio Brass collection.

Metro Employees Historic Vehicle Association
c/o Metro
201 S. Jackson St. - CAB-TR-0350
Seattle, WA 98104