RUSSIAN SCHOOL, CIRCA 1780, AFTER JOHANN-BAPTIST LAMPI (AUSTRO-ITALIAN, 1751-1830)

RUSSIAN SCHOOL, CIRCA 1780, AFTER JOHANN-BAPTIST LAMPI (AUSTRO-ITALIAN, 1751-1830) Catherine II (1729-1796), Empress of Russia 1762-1796, known as Catherine the Great, in ermine-bordered robes over blue dress, jewelled chain and tiara, wearing the breast-star of the Imperial Russian Order of St Andrew, curling powdered hair on ivory oval, 1½ in. (38 mm.) high, silver mount with twisted suspension loop