GFMW Great Falls Metal Works Sterling 925 Onyx Opal Inlay Modernist Brooch Pin

Description: Handcrafted sterling silver brooch by Great Falls Metal Works (GFMW), featuring a central black onyx and opal inlay in a modernist circular design. The piece is signed “STERLING” and bears the GFMW hallmark on the reverse. Measures approx. 1.5" square with a secure locking pin back. Great Falls Metal Works (GFMW) was a jewelry studio based in Great Falls, Montana, known for its handcrafted sterling silver pieces featuring inlaid stones like opal and onyx. Active primarily in the 1970s and 1980s, the studio was recognized for its modernist and geometric designs, often combining traditional craftsmanship with bold, contemporary forms. Condition: Good vintage condition with surface scratches from age and wear. No missing inlay or structural damage. Pictures are part of the description; please see pictures for exact condition. Tags: Modernist, artisan, 1970s, GFMW, USA, handmade, geometric, statement, black opal, sterling brooch, unisex, square pin, retro jewelry, collectible, sculptural, art jewelry, mixed stone, vintage studio, American silver, abstract Unisex gift for men & women. Browse our vintage designer costume jewelry & stamped fine jewelry (sterling, 10k, 14k, 18k gold).