Czechoslovakian Early Art Deco Faceted Blue Glass Decorative Chain Necklace

c1920 Czechoslovakian This is such a beautiful necklace. The metal is silver tone and still shiney and bright-it possible that it was rhodium plated. The pendant measures 2 in. length and 1.25 in. wide. There is a blue faceted oval glass piece bezel set. The color is a med-to dark intense blue. The chain has decorative links some set with matching facted top round glass stones. The piece at some point had a extension chain added. Chain length 18 inches but it can go up about another 2 in. to 20 inches. Very good condition.