1920s Art Deco Louis Rousselet French Paste Glass Briolette Bead Cluster Sautoir

Vintage art deco sautoir necklace by Louis Rousselet circa the 1920s. The main length of the necklace is an alternating pattern of blue, colorless, and black faceted glass rondelles - Rousselet called these beads rondelles cristal - with a tassel of three clusters of blue and colorless briolette glass beads that hang, flapper style, like a pendant. The necklace itself is about 32 inches in length, with about an additional 4 inch drop. Maison Rousselet has confirmed with me that this is one of their creations. Fabulous, rare, early piece.