 During these years as director, Emery also investigated several early dynastic tombs at Saqqara.While at Saqqara he made the significant discovery of a "zoo" of mummified animal remains.In 1937, Emery also discovered a disc-shaped object referred to as the Schist Disc (aka the Egyptian Tri-Lobed Disc) while excavating the burial chamber of the Tomb of Prince Sabu, son of Adjuib Pharaoh, governor of the I Dynasty (3,000 B.C.