Mahogany 90 Day Laterndluhr Wall Regulator. 7 in. porcelain dial signed has black painted Roman hour numerals, original period blued hands and fancy brass bezel; brass 90 day weight driven time only movement has dead beat escapement, maintaining power, knife edge suspension, long steel pendulum rod, brass covered bob, beat adjustment on the crutch, brass 5 spoked pulley and brass covered weight. In a rosewood Biedermeier style case with inlaid striped borders and sun on the bonnet, c.1830, in good condition, running, clean enhanced original finish. 45 in. high x 10.5 in. wide x 5.5 in. deep. Weight: 14.25 lbs.