Vintage Unmarked Indian Silver and Turquoise Chip Circular Brooch retailer

Vintage Unmarked Indian Silver Inlaid Turquoise Chip Circular Brooch

A fascinating circular brooch retailer with petal like frame
in unmarked silver
distinctive teardrop channels filled with turquoise chips.
The channels are brass.
We believe this piece to be either Native American or Mexican.
Nice vintage condition
with a simple safety catch on the reverse.
Diameter is 1 3/4 inches. The weight is 11.5 gm