late 19th century - early 20th century | gelatin silver process
Unknown | jadeite
Unknown | stone
Unknown | clay
Unknown | jade
300 BCE - 300 CE | obsidian
Unknown | shell
Unknown | quartz
early 20th century | lithograph on paper
300 BCE - 300 CE | clay, slip, paint
500 BCE - 700 CE | jade
1300 - 1521 CE | clay
Unknown | obsidian