Spectacular Vintage Louis Rousselet Jewellery Amber Glass Art Deco Carved Flower

Very nice piece Cc.1930s.  The string is made of metal,the beads are glass,the carved flower early plastic or bakelite,I didn't test it. The barrel closing mechanism is signed Made in France. One petal of the flower has some damage,please see photos. Measures approx 45cm. Thanks for looking.