late 19th century - mid-20th century | leather, glass, sinew, cotton
circa 1940s | stone
1900-1900 | glass, hide
20th century | hide, glass
20th century | hide, glass, pigment
20th century | glass
late 19th century - early 20th century | gelatin silver process
late 19th century - early 20th century | metal
late 19th century - early 20th century | metal and plaster