Stamped "STERLING" I dont see any other makers mark on the piece Looks to be antique, before WWII, and maybe of mexican origins/style.
no knowledge. purchased it online.
A Silver & Onyx Fringe Necklace, in the Mexican style,
the 15 black stones within beading surrounds with silver backing, clasp stamped "STERLING", 15.5 to 16" in length, about 1 inch in top to bottom.
N.B: If the stone is not onyx it could be Obsidian which is natural volcanic glass.
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