This highly conventionalized faience amulet is of a wedjat eye. It has a double eye back to back and a pierced design. The wedjat eye represents Horus' left eye lost in battle and later restored magically by Hathor. The eye came to symbolize wholeness. Same as 29-12-56a, but smaller.
From Egypt, Giza, radim on top of Mastaba G 7753. 1929 : 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