Silver, onyx (bowenite?); polishing, rolling, carving, casting
Marks: "W.A.BOLIN"; certificate of identity of the Moscow District Assay Office 1908-1917; alloy number "84"
Onyx (bowenite?) tray of round shape, with silver frame. The ring-shaped frame is made in the Neoclassical style in the form of a garland of laurel leaves.