A RUSSIAN SILVER AND PLIQUE-A-JOUR ENAMEL TAZZA, MARKED KHLEBNIKOV WITH IMPERIAL WARRANT, MOSCOW, CIRCA 1890 With a deep bowl, on a conical flared foot supported by six spheres, the body ornately decorated in polychrome plique-a-jour enamel, the bowl with roundels featuring enameled roosters in heart-shaped cartouches, diameter: 29 cm (11 3/8 in.), height: 22 cm (8 5/8 in.), dated assayer`s mark AA 1890, 84 standard