VTG Native American Zuni Sterling Silver Turquoise Petit Point Earrings stamp LU

Lovely Zuni Petit Point Earrings! Vintage believe 50s 60s. Very good vintage condition, please see all photos. If you need more let me know. The stamp on back is "LU". I have researched and cannot find artist. The Zuni Reservation is about an hour west of where I live. This was an estate item. Do not know history. They are really nice. NOTE small drop item, Dimensions: approx 3/4" drop top to end front - see photo with measurement.