This is a large mother-of-pearl shell with two holes on one edge. It is incised with a cartouche of Senwosret I.
From Egypt, Sheikh Farag SF 5. 1912: excavated by the Harvard University-Museum of Fine Arts Expedition; assigned to the MFA by the government of Egypt. (Accession Date: December 4, 1913)
Harvard University—Boston Museum of Fine Arts Expedition