Vintage Screw Back Earrings. See below for more information.
Screw back earrings refer to the earring with a back that has a screw device for fit instead of a clip. The post is threaded which enables you to tighten and loosen the backing. These vintage silver tear-drop shaped earrings are 5/8" long and 1/2" wide. They are 1/4" thick. The screw back is 1/4" long.