Vintage Industrial-Style Pewter Brutalist Bib Necklace

This item is a statement necklace featuring a bold, Brutalist-inspired aesthetic. The central focus is a large, trapezoidal bib-style pendant with a heavily textured, pitted surface reminiscent of molten metal or cast slag. The pendant exhibits a dull, silvery-grey luster consistent with pewter or a similar base metal alloy with an antiqued finish. The necklace body is composed of irregular, faceted chunky beads that vary in size and shape, creating an organic, hand-forged appearance. Some beads feature recessed geometric motifs, potentially representing abstract maker's symbols or decorative accents. Small, round spacer beads lead to the closure, which consists of a simple hook and eye-style clasp with an adjustable extender chain. The overall condition shows significant age-related patina, with darkening in the recessed areas of the texture and minor surface oxidation. The construction is heavy and artisanal, likely dating from the 1960s to 1970s modernist movement. There are no clearly visible maker's marks in the provided image, but the craftsmanship suggests a mid-century studio piece or high-quality costume jewelry design.