Jacob's ankh was a wooden ankh that Jacob gave to Hurley in a guitar case prior to Hurley's return to the Island. When Hurley time-traveled from the 1970s back to 2007, he brought the guitar case and the ankh with him. After he, Jack, Kate, Sawyer, Jin were captured by the Others and taken to the Temple, he gave it to Dogen as proof that he had spoken to Jacob. After opening the case, Dogen removed the ankh and broke it in half, revealing a scroll hidden inside the wood.