FOUR RUSSIAN PORCELAIN PLATES, ST. PETERSBURG

FOUR RUSSIAN PORCELAIN PLATES, ST. PETERSBURG two plates navy blue and gilded, Imperial Porcelain Manufactory , period of Alexander II (1855-1881); the third plate from the Gothic Cottage Service, Imperial Porcelain Manufactory, period of Alexander III, dated 1893 ; the fourth plate gilded with the Imperial cypher of Alexander III, Kornilov Manufactory, 1881-1894 three plates with green cypher marks; one with blue factory mark diameters approximately 9-10 in. 22.8-25.4 cm