This is a vintage rotating music box made by Steinbach in Hohenhameln, Germany. It's a great design with three playing boys dancing under a birdhouse - the top turns and the boys dance to the tune "Mussidenn" when the key on the underside is wound and the on/off lever on the side is pulled out. It's in good condition without any chips or cracks, the box plays nicely.
It measures about 7 tall.