Glass astragal (knucklebone), Hellenistic, 3rd?2nd century B.C., Greek, Glass; cast in a two-part mold, Overall: 5/8 x 1/4 x 5/16 in. (1.6 x 0.6 x 0.8 cm), Glass, Translucent light green., Shaped like the knucklebone of a sheep or goat. Solid with co