This brooch is one of four jewels that appears in a 1922 volume called The Russian Diamond Fund, recently uncovered in the rare-book room of the U.S. Geological Survey Library in Reston, Va. The four pieces are no longer part of the Russian collection. Russian Jewelry, Royal Jewelry, Diamond Jewelry, Fine Jewelry, Trendy Jewelry, Diamond Rings, Royal Crown Jewels, Royal Crowns, Tiaras And Crowns