Copa Collection Belt Buckle with Amethyst Stone Vintage 70s Rare Abstract

Here's a cool brutalist style belt buckle made in Brazil by Carvalhu Rio Ernandes for his Copa Collection, likely made in the 1970s. This is one of his earlier pieces, unsigned, but stamped MADE IN BRAZIL. It measures 5in L x 3.7in H and fits up to a 2in belt strap (not included). In good condition for its age, with minimal signs of prior wear.