Two workers, c. 1908, use plaster to create a mold of a deceased person's face. This mold will then be used to make that person's death mask. Death masks may be mementos of the dead, used for creation of portraits, or placed on the face of the deceased before burial rites. The best known of the last are those used by Ancient Egyptians as part of the mummification process, such as the one for Tutankhamun.