Rare Vintage Unique Teal And Gray Clip On Earrings

These are stunning. I’ve never seen anything like them before. The teal color is mesmerizing. The center bead seems like to be a huge silk thread bead. The teal bead is surrounded by gray beads and two crystals. The back of these are also beautiful with filigree designs. It says “PAT PEND”. The dimension is 1.25” x 1”. 15