Tiahuanaco Kero from Bolivia, ca. 200-800 AD. A choice Tiahuanaco polychrome kero from Bolivia, ca. 200 ï¾ 800 AD. This boldly painted Yamparaez style example from the Sucre area is 5-1/2ï¾ high and is decorated with the highly stylized designs characteristic of the type. In superb condition, with good mineral deposits. Ex Espinoza estate. Value Range: $450 - $600.