Coarse slightly tapered cylidrical bead, not cylinder but formed of numerous irregular flat faces approximating a cylinder form
From Nubia (Sudan) Gebel Barkal Tomb B 551. 1920; Excavated by the Harvard University-Museum of Fine Arts Expedition; assigned to the MFA by the government of Sudan.
Harvard University—Boston Museum of Fine Arts Expedition
Nubian, Napatan Period, 750–250 B.C.