This is a circular smooth disc. It is wider at the top than the bottom and has sloping sides. The color is partly red and partly white.
From Egypt, Giza, debris East of Pyr. I-b, St. G 7000. 1924: excavated by the Harvard University–Museum of Fine Arts Expedition; assigned to the MFA in the division of finds by the government of Egypt.
Harvard University—Boston Museum of Fine Arts Expedition