Electric yellow Swarovski polka dot clasp

At the height of the mod sixties, Swarovski went wild with a psychedelic series of polka dots. I received them in their original packages so I know they are Swarovksi, and are they ever fun. These are D.S. Swarovski manufacture. This one is a bright yellow background with silver polka dots. The centerpiece is 8 mm in diameter. The clasp is 25 mm from ring to ring.