RUSSIAN SILVER AND NIELLO CIGARETTE CASE,Mid-to-late 19th century, AC maker's mark, probably I. Avdeyev assay, Moscow; later French swan import mark; 84 silver standard. Rectangular; one side depicting Moscow within a cartouche, the whole in scrolling foliate decoration - 4 oz., 6 dwt.; 2 3/4 in. x 4 3/4 in. Estimate $400-600