Fragment of shell or ornament, with scratched lines in and out (probably abrasions).
From Nubia, Kerma. KN 7-X. 1915 : excavated by the Harvard University-Museum of Fine Arts Expedition; assigned to the MFA by the government of the Sudan.
Harvard University—Boston Museum of Fine Arts Expedition
Nubian, Early Kerma, 2400–2050 B.C.