A unique first quarter of the 19th century Austrian ormolu, ebony and alabaster-mounted burr thuya wood automata organ clockJ. Ad. Hoyer, Wien.The architectural case set with ormolu mounts and balustrades, the niches supported on alabaster columns, centred by a pair of a doors flanked by parcel gilt standing female caryatids, on a bow-fronted base, the 5.25 inch gilt dial centred by the white enamel Arabic dial with concentric date and moon hands, the gilt surround set with a pair of standing warriors, each with a raised arm moving in tandem with the gong-striking movement to sound the hours and quarters, the clock movement with circular plates cast with a wedge-shaped base, silk suspension striking the hours and the quarters on a pair of blued steel coiled gongs, activating the musical organ below playing a choice of seven melodies on twenty four wooden pipes. The 12 inch wooden pinned barrel powered by the large single gut fusee movement signed in full in copperplate script,'J. Ad. Hoyer, Wien' wound from the right hand side door on the hour to strike the bell.An applied hand-written label on the barrel gives the following tune titles:1. Ouverture aus Italiana in Algeri (Rossini 1813)2. Polonaise di Rohsini3. Schlussgesang aus der Elster (Rossini 1817)4. Pas de deux aus Alfred (Gallenburg 1820)5. Variationen/ Es ist alles eins6. Ober und Unter Osterreicher7. Marsch aus Alfred (Gallenberg 1820) height 53cm; width 55cm; depth 32cm注脚Literature: Helmut Kowar, Die Wiener Flotenuhr, Wien 2001, pp. 140-141.