Art Deco Czech Vauxhall Glass Necklace Floral Flower theme

Beautiful, one of a kind, antique vintage Czech Czechoslovakia clear glass inlay necklace. Glass floral theme, similar to a daisy flower. Other glass design is prong set. Metal backing. I have a picture of the clasp and metal backing. Clasp ring is marked Czechoslov, see picture for this. Seems very old, I'm guessing 1920's, possibly 1930's or older. Good condition. Could be cleaned, I did not try. All glass pieces present. Metal shows tarnish. Please view all detailed photos. Measurement in photo. I have more jewelry, vintage and new, bundle and save! Stone chain necklace pendant bracelet cuff ring earrings 925 sterling silver gold tone cz rhinestone crystal tribal boho chic turquoise Navajo ethnic southwestern