Mid-century modern fun in an arthritis-friendly copper bracelet! Circa 1950, measures approximately 7/8" in width, fitting up to a 7-1/2" wrist. Makers marked "Renoir" to outer lip of cuff. In overall good condition with light scuffing consistent with age & use. Among collectors of costume jewelry, copper is usually associated with Jerry Fels, who founded Renoir of California in 1946 and Matisse Ltd. in 1952. Renoir pieces took their inspiration from the Arts and Crafts era, when copper was a favorite of artisans producing hammered hollowware. Renoir was known for its solid copper cuffs, as well as its hinged bangles. Decorations on these pieces ranged from twisted strands of copper wire, mimicking the look of rope, to spring-like wire coils that were gently flattened and then polished to produce rows of what appeared to be semi-circular loops. In fact, playing with geometry was a favorite preoccupation of Renoir designers. The company’s “swiss cheese” bangles came in several styles, some featuring a wide ribbon of copper that had been punctured by holes, others flipping this effect so that the holes stood paradoxically in relief on their copper base. Squares and rectangles, chunky arrows and angle-shapes, and balls of various size were also incorporated in Renoir pieces, as were leaf shapes and other floral motifs.