1800s | Ivory
300 BCE - 300 CE | clay, slip, paint
Unknown | obsidian
Early 1900s | Ivory
300 - 900 CE | clay
1300 - 1521 CE | clay
100 BCE - 700 CE | clay
300 BCE - 300 CE | clay, burnished red slip
Unknown | jade
late 19th century - early 20th century | metal
late 19th-early 20th century | copper Alloy, lead, black powder,
early 20th Century | lead, copper, ink residue
late 19th century - early 20th century | cloth
late 19th century - early 20th century | paper, ink
early 20th century | leather
early 20th century | metal, leather, copper alloy
early 20th century | metal, glass, plastic, cloth
