1904 | graphite on paper
September 6, 1906 | graphite and purple colored pencil on paper
June 11, 1873 | graphite on paper
July 20, 1878 | graphite and black lithographic colored pencil on paper
March 5, 1877 | graphite on paper
February 22, 1877 | graphite on paper
late-19th century - early 20th century | graphite on paper
mid-19th century - early 20th century | graphite on paper
1881 | graphite on paper
March 29, 1923 | graphite on paper
1875 | graphite on paper, heightened with white chalk
1902 | graphite on paper
July 13, 1910 | graphite on paper
August 6, 1873 | graphite on paper
1903 | graphite on paper
May 21, 1907 | graphite on paper
February 19, 1877 | graphite with watercolor on paper