"Franz Lehrner" Biedermeier 4 Month Mahogany Floor Standing Regulator Clock, c.1830. 12 in. porcelain dial signed "Franz Lehrner, in Wein" with black Roman hour numerals, sub seconds and quality blued hands; brass 4 month weight driven time only movement with deadbeat escapement, maintaining power, solid brass pulley with ovoid brass covered weight, quality real compensating gridiron pendulum hanging from a knife edge suspension. In a mahogany floor standing clock case with architectural crest and gilt brass door bezel with beveled crystal on the bonnet top, has beautiful maple striped inlays along the edges. Good condition, clean original finish, running; weight has excessive dings, hairline in left bonnet glass, has winding key. 79 in. high x 18.25 in. wide x 10.75 in. deep.