Is it a shooting star? Arrow motif? Cool old pin in sterling silver with a black onyx gemstone. Nice old brooch! Let it fly through your wardrobe to land on a hat, coat, lapel, sweater, …..
Tests as sterling silver. There are maker’s marks on the back but even with a magnifying lens I can’t make one out. Marked 925 and what looks like a Taxco mark but the other is unknown.
Sold as found with the patina of age intact.

This item is sold from a vintage boutique in The Salish Sea, Washington.