细节
A tortoiseshell singing bird box
with going barrel movement, the bird with moving wings and bone beak, beneath engraved, gilt and silvered cover, with compartment at rear -- 4in. (10cm.) wide, late 19th century
with going barrel movement, the bird with moving wings and bone beak, beneath engraved, gilt and silvered cover, with compartment at rear -- 4in. (10cm.) wide, late 19th century