RUSSIA, Empire. Anna Ioannovna. 1730-1740.  CU Denga 27 mm, 7.6 g. Flatting Mill on the Yauza River mint. Dated 1731.  Crowned double-headed imperial eagle facing with wings displayed, holding scepter and orb; crown above /  ДЕНГА and date in three lines; all within ornate frame supported by laurels and palm fronds; above, large rosette.