Vintage Ruth Bach Signed Brass Enamel Pendant Necklace Abstract Modernist Studio Vintage signed pendant necklace by American studio jewelry artist Ruth Bach. This piece features an abstract triangular brass pendant with hand-applied enamel detailing in black, white, and deep red tones. The design is modernist and organic, characteristic of Ruth Bach’s studio work from the late 20th century. The back is signed “Ruth Bach,” confirming artist attribution. The pendant is suspended on a black cord that threads through an integrated channel at the top, a construction style commonly used in studio jewelry rather than commercial production. This is an artist-made piece, not mass-produced jewelry. Patina is present and appropriate for age and material and has not been aggressively cleaned.