Vintage Schreiber & Hiller (but unsigned) brooch, Art Deco channel set clear paste and green rhinestones with poured green glass drop brooch

Vintage Art Deco brooch in silver tone with clear channel set rhinestones using the Schreiber and Hiller company's patented construction alongside emerald green rhinestones and a poured glass green droplet. I haven't seen this design before and it is so unusual.

The brooch is around 2.5 inches long and 2 inches wides. It is in very good vintage condition and fastens with a simple hook 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/