This urn probably dates toward the end of the epoch of transition from period II to IIa. Boos noted that the "overhanging, sombrero-type of headdress . . . and the urn's monumentality” would indicate a date within this transitional period, as would the heavy, curled lips and the summary, blocklike treatment of the body above the knees. On the other hand, the size and elaboration of the headdress, the broad face, and the developed form of the Cocijo mask are characteristic of period III. The Cocijo mask is noteworthy for the incisions on its lower half, which is normally rendered in relief. The lower section of the pectoral ornament seems elongated with others of its type.