This modernist necklace is marked "Matisse" on the hook; this is the trademark of Jerry Fels of Los Angeles, a talented mid-century jewelry designer and maker. Fels was active from around 1945 until around 1970. The name "Peter Pan" was used for this design because the necklace looked great with the "Peter Pan" style collar that was popular during the 1960's. This necklace is copper with red enamel on the fronts of the links. The enamel is intact but there is some wear on the sealing lacquer; the copper has tarnished slightly in spots. This necklace is 1 1/16" wide and is adjustable from 15" to 18" long. It is flexible and lays comfortably flat against the throat.