细节
A DUTCH 17TH CENTURY EBONISED AND TORTOISESHELL FRAME, with various ripple and wave mouldings at outer and sight edges; sloping tortoiseshell central plate
6 1/8 x 5 1/8 x 1 5/8in. (15.5 x 13 x 4.2cm.)
6 1/8 x 5 1/8 x 1 5/8in. (15.5 x 13 x 4.2cm.)