Patent Pending Saddleback Earrings Dark Blue Charm and Dangling Teardrop Charity

The hingeback ones have "pat. pend." on them. I don't see any brand on them or maker's info. I don't see any ID on the charm or teardrop earrings. These are from the Estate of the Librarian of the local library. The money from the sale of these went to the Library for programs. The hingeback earrings have 2 gemstones missing on one of them. LOCATION: Baggy, box /studio.