early 20th century | hide, glass, pigment
late 19th century | hide, glass, brass
early 20th century | hide, glass, metal
early 20th century | hide, quill, glass
late 19th century | hide, glass
early 20th century | hide, yarn
early 20th century | glass, hide, pigment, silver
early 20th century | hide, glass, silver
early 20th century | hide, glass, paint
1846 | ink on paper
December 2, 1845 | ink on paper
early 20th century | semi-tanned hide, rawhide, glass, sinew
circa 1900 | hide, glass, sinew, cotton
late 19th century–early 20th century | semi-tanned hide, rawhide, pigment, glass, sinew, cotton
modeled 1909; lost-wax cast between 1909 and 1916 | lost-wax cast in bronze
1879