Georgian Antiques has dated this piece to the 1870s.
The front has a small door which when open shows a small cuckoo with an articulated mouth and wings.
The numbers are Roman numerals and the hands appear to be made of bone. There are 2 winding holes with similar bone bezels.

It is a spring driven cuckoo clock which operates on a pair of bellows with 2 tones. The bellows are made of vellum. The sides of the clock has 2 apertures for the sound and 2 further doors for observation. There is no makers mark. The clock can stand on a mantel or hang on a wall.
Size 53.5cm high x 36cm wide x 14cm deep.
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Georgian Antiques has dated this piece to the 1870s.
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