VINTAGE RUSSIAN SILVER NIELLO VODKA CUP. Soviet era 1920’s-1930’s. Original Patina- excellent condition. Cobalt blue enamel- elegant design. Marked 875 silver mark with Soviet Star to the left. Bottom is marked with master mark KXK. Gilded- gold plated inside. Height 2 3/8″ —-Diam on top 1 3/8″— diam on bottom 7/8.