This is a disc-shaped lid made of a reddish clay fabric with a red wash treatment around the edge. One side is flat, while the opposite is slightly convex. It appears likely that it was fashioned deliberately as a lid rather than being shaped from a fragment of a pottery vessel (as some were).
From Kerma, Cemetery S, K II (Upper Deffufa), front. 1914: excavated by the Harvard University–Boston Museum of Fine Arts Expedition; assigned to the MFA in the division of finds by the government of the Sudan. (Accession Date: September 18, 2006)
Harvard University–Boston Museum of Fine Arts Expedition