late 19th century | hide, glass, hair
20th century | clay
1000 BCE - 1000 CE | Stone, basalt
March 2, 1816 | ink on paper
March 6, 1829 | ink on paper
March 18, 1831 | ink on paper
March 15, 1832 | ink on paper
December 3, 1833 | ink on paper
April 9, 1834 | ink on paper
1797 - 1897 | pencil on paper
March 6, 1835 | ink on paper
October 14, 1835 | ink on paper
January 15, 1836 | ink on paper
February 22, 1837 | ink on paper
July 22, 1837 | ink on paper
October 7, 1837 | ink on paper
December 5, 1837 | ink on paper
February 8, 1838 | ink on paper, wax
March 28, 1838 | ink on paper, wax
May 17, 1838 | ink on paper