From Etsy seller Retrovinta comes this set by Quebec designer Jean Claude Darveau. The seller describes it this way: “1970s Canadian designer artisan Jean Claude Darveau modernist necklace and earrings demi parure. The hand crafted abstract statement necklace and earrings are made of white metal with silver plated finish. They are adorned with melamine elements. The closure system clasp is stamped with the patent number : 3984900 dating the necklace around 1975. The earrings have stems for pierced ears and one of them has been resoldered.”
This set sells for CDN$220.35.

Very interesting set!