Hinge lock net with frame of copper in turtle stem inlaid with mother-of-pearl and copper; Hinge lock net with frame of copper in turtle stem inlaid with mother-of-pearl and copper. Turtle inlaid with mother-of-pearl and copper; pattern of flowers; branches; twigs and coat of arms. Rectangular glasses in copper; hinged in the double nose bridge and one of the corners; so that it disappears in a rectangular; open side; box of stone; two extended ends: for the eyelet for a ribbon and as a handle; for the hinge.; anonymous; Netherlands (possibly); c. 1845 - c. 1865; glazen; montuur; steel; mother of pearl; inlay (process); l 7.5 cm x h 2 cm x d 1.3 cm