This is a vintage novelty clock from the Black Forest of Germany. It is a miniature, key driven clock that features a moving dancer platform that spins as the pendulum swings. (Note - there is no music).
Novelty clocks of this kind were especially popular during the middle of the last century. They feature spring driven movements that are not truly repairable. This clock is original, tested, and running but should be handled with care and treated as a delightful piece of history rather than a to the minute time piece.