A RUSSIAN PLATE, THE CENTRE PRINTED IN BLACK WITH A VIEW OF "KAMENNOI OSTROV PALACE", COLOURED IN SEPIA, WITH A CARTOUCHE INCORPORATING THE CYRILLIC SIGNATURE OF I. CHESKII, THE BORDER WITH WHITE AND PALE-BLUE BANDS EDGED IN GILDING AND THE RIM WITH A CONTINUOUS BAND OF LEAVES, IMPERIAL FACTORY, CIRCA 1820 -- 9¼IN. DIAM.