Vintage DRGM Schreiber & Hiller (but unsigned) Art Deco channel set paste clear rhinestone brooch - beautiful floral design

Wonderful vintage Art Deco brooch in silver tone with clear channel set rhinestones using the Schreiber and Hiller company's patented construction. I haven't seen this exact design before and it is adorable. It consists a central rhinestone, then layers of petals made from channel set slightly curved panels.

The brooch is around 1.5 inches in diameter. It is in very good vintage condition and fastens with a secure roll-over safety clasp and pin.

A fabulous website here is packed with information about Schreiber and Hiller pieces: https://www.trufauxjewels.com/jewelry-mystery-drgm-1138525-esha-randel/