On pl. VI is shown another mosaic mask in the British Museum. We follow Read’s description. It is of cedar, and the lower left-hand part of the face is missing. Over the face are represented two entwined serpents curving around the eyes and mouth, and the rattle-tipped tails rest over the right and left of the forehead. The whole of the surface of the mask is covered with a mosaic of turquois, bright-blue and dull-green in color, arranged in such manner that the two snakes are distinct in color. The rattle of each snake upon the temples are modeled of the same gum as that in which the stones are embedded, and it seems possible that they were formerly gilded. The mouth of the mask is slightly open and contains teeth of white shell in the upper jaw. There is a slit over each eye and a hole in each temple. The inside of the mask is painted red. Height 6.9 inches, width 6.6 inches. Read believes that the heads of the two snakes were on the lower checks, which are incomplete. Maudslay identifies this mask with that described by Sahagun in the chapter which we have translated (see p. 14), relating to the objects pertaining to the god Quetzalcoatl which were presented by Montezuma to Cortés.[89] In this description only one serpent is mentioned, and Sahagun states that “the head with part of the body came over one eye so that it formed an eyebrow, and the tail with a part of the body went over the other eye to form the other eyebrow.” In the plate the two rattles are clearly seen, and Holmes has published a diagrammatic drawing differentiating the bodies of the serpents. If Sahagun’s description is accurate, this specimen cannot be the one mentioned by him. It is, however, one of the most interesting pieces of mosaic that has survived.