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French mantle clock with tellurian, c. 1810, attributed to Janvier. Two train, Tic-Tac escapement, half second pendulum, hour and half hour strike on count wheel. An orrery is mounted to the top of the clock case and is driven by the clock in real time as well as by a demonstration key.

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Video demonstration of a French mantle clock, c. 1810 with orrery mounted to the top. The orrery is driven by the clockwork and can also be demonstrated by a crank. The clock is unsigned and the orrery was probably supplied by a third party as many makers including, Janvier, Baltazar, Guiteau, Berthoud and others have clocks signed by them with this same mechanism. The basic construction is common throughout, only details such as engraved vs. enamel dialing or different dial bezels were supplied as upgrades.

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