one of the first foundations of Edificio 3. The foundation is formed by a frieze that measures ninety cm by 2.25 m in the best preserved areas. It was painted over a small talud only sixty cm long. It is possible there was a cornice here above it. The building corresponds to around 200 AD. The subject of the mural is a feast, featuring personages drinking what is most likely pulque. Several of the displayed figures are wearing cloth turbans and maxtlatl sashes, and most of them wear zoomorphic masks. The figures sit in facing pairs, serving themselves from vessels placed between them. The subject of the mural is a ceremony where the participants appear relaxed as they realize various activities, which include drinking, making offerings, serving with one vomiting and one defecating. The figures are in vignettes along the strip of wall with the elements evenly distributed along its length. A number of the elements, such as the cups and jars, are associated with the drinking of pulque. It has been claimed by Florencia Muller that this mural is the oldest known representation of the ritual of the pulque gods. The work has parts missing, but there is enough to discern three horizontal sections. The ones above and below are lines or borders framing the main central level containing the drinking figures. The mural divides into six "walls" (muros), which show differences in technique and content, most likely due to being the work of different artists. However, all relate to ritualistic drinking of pulque. These figures along the center are then divided into two sections by a blue band seen on walls 3, 4, 5 and 6. There is also evidence that the mural had been retouched several times. The mural contains 110 figures organized into pairs. The pairs are then separated by images of jars. Four can be identified as seated women and some of the figures appear to have wrinkles to depict age. Most of the men in the work are shown seated, facing front (but with faces in profile) with a bulging belly, with arms and legs in various positions, most with cups or other containers in hand to serve or to drink. There are a total of 168 jars, cups and other containers in the mural of various sizes and colors. There is also a depiction of an insect and two of dogs. The people