I bought these earrings in New Mexico directly from the husband of the Navajo silversmith Elle Curley Jackson. They are made of sterling silver and coral. They are stamped on the back of the heart dangles Sterling Elle C-J. They measure 1" X 1/2" and are in excellent condition. Not sure if these are the original backs or not since they belonged to my mother for awhile.
Native American Navajo Elle Curley Jackson Sterling & Coral Heart Earrings