Circular cup; a metal knob on the base was probably used for attaching the cup to another object.
From Nuri, pyramid XVI (Talakhamani), room A. 1916: 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, Napatan Period, reign of Talakhamani, 435–431 B.C.