Circa 1940s earrings made by Binder Brothers of New York City.  These screw-back earrings have a tigereye stone carved into a scarab collet-set into yellow gold-filled findings. Marked 1/20 12K Yellow Gold-Filled on the screw-back finding, as well as BB in two concentric circles. In excellent condition, these earrings are 1/2" by  a bit over 1/4".