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A side view of Barford and Perkins water—ballast rollers. The vehicle operated using an internal combustion engine to turn the back tires by a drive chain and stopped by turning the wheel on the right. A stirring chain was connected from the front rollers to the large wheel.

Side View of Barford and Perkins Water Ballast Rollers

A side view of Barford and Perkins water—ballast rollers. The vehicle operated using an internal…