This rare 1918 Yuba 10-20, built by Yuba Mfg. Co., Marysville, Calif., is unique to the West Coast. Its tracks run on steel balls (see insert) rather than rollers. It has a clutch and 3-speed transmission and is steered with a steering wheel and differential brakes. Owned by Norman Willson, Colfax, Wash., the Yuba is one of a pair restored by Ted and displayed in his museum.