Archaeologists in Mexico have uncovered a remarkable green serpentine mask at the base of the Pyramid of the Sun in Teotihuacan. This 2000-year-old artifact, believed to be a ceremonial offering ...

That was in 1956. "Back then I wasn't interested in Mexican masks," says the Lancaster mask collector and author of "Masks of the World." Nearly 200 of Ibold's masks from Mexico are currently on ...