B1839 Willits Frank Lloyd Wright Mantel Clock, 14, Walnut Finish. Adaptation of an art glass window from the ward w. Willits house Solid wooden case and geometric wooden pendulum Quiet sweep (no ticking) second handle Protective glass lens Operates on (2) aa batteries, not included Power source type: Battery Operated. PLEASE MESSAGE US IF YOU HAVE ANY OTHER QUESTIONS, AND MANY THANKS FOR READING ALL OF THIS.