Vintage 1970s Navajo Sterling Silver Turquoise & Coral Butterfly Cuff Bracelet

A wonderful & unusual design depicting a butterfly. The wings are defined by gorgeous turquoise stones that are richly colored with flecks of pyrite. My first instinct is that the turquoise is Morenci, due to the deep blue & bits of pyrite in a reddish to darker brown matrix. One of the stones has a tight hairline crack across the wing, but the stone is secure in the bezel, free of any wiggle. The coral is a naturally saturated red color, which leads me to believe it could be considered "oxblood". It's not the artificial red of dyed corals. The stones are set in plain bezels & flank applied silver drops that define the butterfly's thorax & abdomen. Applied silver wire depict the antennae. All are set on a dual shank of carinated wire with curving beaded details in between. For a larger wrist, the bracelet measures 5 7/8" end-to-end on the interior, plus a gap of 1 1/4" and is 1 5/8" high at center and tapers down to 7/16". Unmarked, but tests as sterling and weighs 43.5 grams. A beauty