circa 1865 | printing ink on paper
late 19th century–early 20th century | white semi-tanned hide, glass, sinew
1862 | graphite on paper
1872 | watercolor on paper
August 21, 1864 | graphite on paper
19th century - 20th century | hide, glass
20th century | hide, glass, metal, cotton
circa 1900 | semi-tanned hide, rawhide, sinew, glass, copper alloy, cotton thread
circa 1930 | semi-tanned hide, rawhide, glass, sinew
early 20th century | hide, glass, metal, pigment
19th century | hide, glass, metal
late 20th century | tempera on wove deckle paper
mid-20th century | tempera on the verso of photographic paper
1991 | oil on canvas
1944 | watercolor on paper
1843 | oil on canvas
circa 1930 - 1940 | leather, glass, cotton
late 19th century - early 20th century | Modeling compound (likely air-dry Modello or similar), iron armature, paint.
early 19th century | watercolor on paper