36" necklace of graduated faceted black beads - Stunning!'

This necklace is continuous and the beads are all beautifully knotted. The largest bead is 3/4" in diameter, the smallest measures approximately 1/3" in diameter. With no maker's label, I have no further information and the beads are hard plastIc and do not test Bakelite. Thanks for looking! As always, I will be happy to consider reasonable offers.