This is a vintage 1950s Modernist-style necklace and bracelet set of solid copper, similar to pieces by Matisse, Renoir and Rebajes, by CopperCraft Guild of North America.
They are made up of smooth slightly-bowed panels overlaid with a textured design of diamond and ring shapes. The copper has been oxidised to create a shadowy effect beneath and around the design. The panels are 7/8″ by 7/8″ (2.1 cm x 2.1 cm) and connected by large broad links.
End to end, the necklace is 16″ (40.5 cm) long with a hook and chain closure so it can be worn shorter than this. The bracelet has a sturdy fold-over clasp and a closed length of 7.25″ (18.2 cm). There are no maker’s marks but these are quality pieces, quite heavy with a “big” rich look. In artificial light, the copper becomes much more vibrant and intense in colour – it really “glows” and shines – so the set glams up nicely for evening wear.
Overall, both pieces are in very good vintage condition with only some patches on the bracelet clasp (see last pic) where the patina has scuffed and some slight wear/sctratching on some of the bracelet links, not noticeable except on close inspection. (Darks spots in the pics are reflections. Otherwise it seems the set has rarely been worn. There is still a sticker on the back which reads “Genuine Copper” and remnants of another one which may have had the maker’s name.