800 - 1520 CE | copper
300 - 900 CE | clay
1300 - 1521 CE | clay
100 BCE - 700 CE | clay
300 BCE - 300 CE | clay
500 - 1000 CE | clay
300 BCE - 200 CE | clay
300 BCE - 300 CE | clay, red slip
Unknown | stone
Unknown | clay
Unknown | jade
Unknown | obsidian