Laterndl clock with year duration

Clock maker: Matthias Wibral (Hodolein/Olmütz 1777 – 1823 Wien)
City/Date: Vienna, 1818
Measurements: H 135 cm
Signature: “Wibral / in / Wien / 1818” (on the case behind the mounting block)
Duration: 1 year

Description: Ebonised case, enamel dial, engine turned ormolu bezel, blued steel hands, small seconds, pin wheel escapement, double weight on single pulley, wind stop, knife edge suspension, steel seconds pendulum