Trenkle West German Copper Alarm Clock. This Blackforest footed wind-up alarm clock was made by Trenkle in West Germany. Clock is round measuring 4 1/2 in. tall and 3 in. wide. It has brass bells and clapper. The casing is all copper. The face is gold design with white on black roman numbers. This hard-to-find clock is in excellent working condition. It would be a great item for a clock collector, or a cute and functional display piece for home or office.