late 19th century - early 20th century | gelatin silver process
1200 -- 1300 CE | Ivory
circa 1915 | Ivory
19th century | stone
19th century | ivory
19th century | fossil ivory
19th century | iron, ivory
19th century | ivory, glass, sinew
1800s | Ivory
1800s | Walrus Penis Bone
circa 1800 | stone, jade