Lovely bird box in a gold plated filigree case. The mechanism is wound from the bottom.
After moving the lever to the right at the front, the lid opens and a little bird appears, singing a lovely melody. The bird is very nicely animated, moving from left to right, moving its wings and beak. At the end of the melody, the bird dives again.
A magnificent and precious object.
https://youtu.be/F1FXBY1IkU8