SANEL Navajo Sterling Silver Dangle Earrings -- Screw Back for Pierced Ears.
Measures about 1/2 by 3/4 inches.
The pictures are a part of the description for the condition.  Note: one screw back is different and may have been replaced.
Billy Jamarillo, Navajo Native American owns and operates SANEL near Albuquerque New Mexico for many years.  His work is on eBay.  Check out his new jewelry.  High quality. 
https://www.ebay.com/sch/kristinej/m.html?_trksid=p3692