As part of a ritual of transition between the earthly and the divine world, the funerary offerings of certain rulers of the Classic period included a mask. The depicted face could be a faithful portrait of the deceased or have attributes of certain deities. They were manufactured with carved mosaics and joined on wood or stucco molds, using materials or symbolic and prestigious value, such as jade, shell or obsidian, to highlight the investiture of the wearer. This was found in tomb 5, Structure XV of Calakmul.