Vintage Chanel clip-on earrings by famed Venetian glass-maker Archimede Seguso. The cluster knot design is comprised of blown Murano glass links and beads interspersed with rhinestone rondelles. Unsigned - the collaboration with Seguso happened while Coco Chanel was still alive, and so before Chanel jewelry was regularly signed. I have had these independently authenticated and certificate information will be sent with the earrings.