A good 20th century gilt brass and enamel singing bird box by Karl Griesbaum, Triberg, Germany....

A good 20th century gilt brass and enamel singing bird box by Karl Griesbaum, Triberg, Germany. Of rounded oblong form, the cover with swags and mazarine blue enamelled border framing a hinged cover painted with figures in a wooded landscape, enclosing a pierced filigree liner with pop-up brightly coloured singing and revolving songbird, released via a bird-shaped sliding purchase to the front, decorated to all sides with canted oblong mazarine blue panels within white borders, in foliage-chased surround, the textured underside with winding arbour, 4" wide x 2.5" deep x 2" high, (10cm x 6.5cm x 5cm), sold with bird-shaped winding key. Provenance: this box has remained in the same family for the last thirty years (ex. inf. vendor). A matching example was sold by Bonhams Knowle, 17th October 2006, lot 90.