late 19th century - early 20th century | gelatin silver process
late 19th century - early 20th century | ink on paper
early 20th Century | lead, copper, ink residue
modeled 1921; lost-wax cast between 1922 and 1926 | lost-wax cast in bronze
circa 1840 | aquatint on paper
1915 | paper
late 19th century - early 20th century | silver
modeled 1916; lost-wax cast between 1916 and 1921 | lost-wax cast in bronze
mid-20th century | tempera on paper
1916 | metal
mid-20th century | ink on scratchboard
circa 1945 | walnut wood
1914 | gelatin silver process