Needs a bit of TLC. Extremely rare. The cuckoo calls every half hour once and the number of the hours every full hour. It has a mechanical extreme long-life rack strike movement. The 8 day running time movement need to be wind up once a week, that means you pull on the chains until the weights are up. It allows turning the hands left and right without endangering the mechanics of the movement. The size refers only to the clock, without pendulum and weights.
The music movement has two melodies.
The melodies change every hour from the Happy Wanderer and Edelweiss.
Wooden dial and hands, nice-carved bird, night shut off.

The mechanism works at times, just needs some tweaking, refurbishing due to age of piece. Extremely rare