细节
A DUTCH 17TH CENTURY EBONY AND TORTOISESHELL CASSETTA FRAME, the central plate with tortoiseshell hearts at corners, ovals at centres and panels, surrounded by ivory inlays
10 7/8 x 8¼ x 2½in. (27.6 x 21 x 6.4cm.)
10 7/8 x 8¼ x 2½in. (27.6 x 21 x 6.4cm.)