Unusual Coro Yellow Glass Drop Earrings

White swirls spin through the yellow glass drops. The screw back mounting is embellished with a translucent brown bead with darker brown swirls, but these almost look amethyst or garnet colored in a certain light. Lots of movement without being too heavy to wear comfortably. Each earring measures approx. 1 1/4" x 1/2". Marked: Coro (in script)