1992 | ballpoint pen on paper
1879
1887
modeled 1896; sand cast between 1896 and 1899 | sand cast in bronze
1853 | oil on canvas
late 19th-early 20th century | gelatin silver process
1943 | oil on canvas
late 19th century - early 20th century | Modeling compound (likely air-dry Modello or similar), iron armature, paint.
late 19th century - early 20th century | graphite and ink on paper
