National Geographic : 1932 Oct
Photographs from Dr. Alfonso Caso EVEN ROCK CRYSTAL YIELDED TO MIXTEC LAPIDARIES Production of this perfect urn of a substance known as one of the hardest and most difficult to work (see text, page 508) would tax the resources of a modern sculptor using the finest tools available to-day. It was found in Tomb 7. RELICS FROM THE TOP OF TOMB 7 The sea shell, with one end clipped toform amouthpiece, apparently was once used as a trumpet.Both the necklace and earrings are ofpol ished jade. No human remains were found near these objects (see text, page 497).