Unknown | obsidian
Unknown | jade
20th century | shell (quahog), cotton
300 - 900 CE | jadeite
20th century | silver
circa 1880 | silver
1800s | Ivory
Unknown | silver, turquoise
circa 1800 | glass, cotton string
circa 1940 | sliver, turquoise, jet, shell, mother of pearl
300 - 900 CE | clay
circa 600 CE | jade
circa 1948 | silver, turquoise
early 20th century | silver, turquoise
circa 1890 - 1910 | silver, turquoise
early 20th century | sliver, turquoise, jet, coral
circa 1940 | silver, turquoise