Vintage Unsigned Bird Of Paradise Peacock 40s Rhinestone Brooch, Boucher Style

This large true vintage 4" unsigned Bird of Paradise or Peacock brooch is reminiscent of Marcel Boucher and Les Bernard styles. Likely made in the 1940s. Likely pot metal & glass rhinestones 4" in length and 1.25" wide NOTE: The clasp may be missing the middle roll over part, or could it be an intentional double c-clasp design? Either way, the pin does funtion like a c-clasp closure. Also note there are dark stones and possibly a missing stone(s), though I don't see anything missing after looking it over pretty well.