Design drawing, including plan, elevation and section of Twin City Rapid Transit Sand Car, 43-45 series. These cars were used to sand the rails for adhesion in ice and snow.
Design drawing, including a plan, section and elevation of a switch car - locomotive built by Twin City Rapid Transit for the University of Minnesota, to be used on the Inter-Campus line.
Design drawing, incluidng plan and elevation of an early Twin City Rapid Transit double truck wood streetcar, rebuilt to operate "one-man" (with only a motorman and no conductor). This particular rebuild remained on the drawing board only and was never implemented.
Design drawing, incluidng plan, section and elevation of Twin City Rapid Transit gasoline boat, intended to replace the steam powered Lake Minnetonka express boats. This boat was never built.