1993 | ballpoint pen on paper
1882 | graphite on paper
June 1873 | graphite on paper
late 19th century | graphite on paper
1880 | graphite on paper
1873 | graphite and ink on paper
1882 | graphite and white chalk on paper
August 6, 1873 | graphite on paper
late 19th century | graphite, wash and white chalk on paper
August 9, 1873 | graphite on paper
August 1, 1873 | graphite on paper
July 23, 1879 | graphite on paper
July 12, 1873 | graphite and ink on paper