late 19th century; bearing the gilt cypher of Grand Duke Sergei Alexandrovich (1857-1905), uncle of Nicholas II and his wife Princess Elizabeth of Hesse and by Rhine (1864-1918), 9 1/4 in. Diam.; Collection of US Ambassador to the Soviet Union, Joseph E. Davies and his wife, Marjorie Merriweather Post, acquired in the Soviet Union. Then by descent, estate of US Senator Joseph Davies Tydings, Maryland.
Excellent condition, age appropriate wear