From the tomb of Princess Ita, daughter of Amenemhat II. The dagger was found in her coffin, together with a collection of jewels that included bracelets, anklets a necklace, and the remains of a belt. The pommel is in the shape of a light crescent of lapis lazuli. The hilt is beaten gold and is inlaid with disks of lapis lazuli and green feldspar. Princess Ita's tomb, next to the pyramid of king Amenemhat II at Dahshur. Middle Kingdom, 12th Dynasty, reign of Amenemhat II, ca. 1914-1879 BC. Now in the Egyptian Museum, Cairo.
Queen's temple, 50 coffins, Book of Dead: Ancient Egypt trove 'remakes history' | The Times of Israel
They need to start releasing unacknowledged facets of ancient Egypt. The Hall of Records would be nice.
Drunvalo Melchizedek said the sphinx's head will fall off sometime in the future revealing a crystal. Maybe that contains the data of the hall of records. According to the Bucegi discovery there's a projected tunnel running from Romania to under the Giza Plateau. They supposedly found tablets and project holograms of the history of the universe.