Thin black iris of an eye inlay; fits perfectly into 18-3-126.
From Nuri, pyramid XXXI (Saka'aye), room A. 1918: 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, reign of Nasakhma or Malowiebamani, 468–435 B.C.