Beautiful copper with white speckled enamel in the Renoir/Matisse style. There are markings on the round ball at the end of the clasp that I can not make out. Handcrafted of copper and baked white enamel with a topcoat of white spattering, it has 32 spikes alternating between 1" and 1-3/8" long. The enameling is in excellent condition. The choker necklace is fully adjustable from about 16 inches up to 18 1/2 inches and all the hardware is intact and fully functional.