This is very great old antique Venetian 4-Layer green Chevron glass trade bead. The chevron or star bead is from the family of drawn beads, called "rosetta" in Italian. It was used in African trade in the late 1800's to early 1900's This bead is in absolutely good condition. This bead is beautiful with 12 point star mold, you will love this bead. measurement: 17x18 mm diameter size.