1879 | printing ink on paper
late-19th century - early 20th century | graphite on paper
1881 | printing ink on paper
1873 | graphite and ink on paper
1880 | graphite on paper
1888 | graphite on paper
mid-19th century - early 20th century | graphite on tracing paper
late 19th century | graphite on paper
September 16, 1881 | graphite on paper
August 1883 | graphite on paper
September 15, 1881 | graphite on paper
1883 | printing ink on paper
1895 | graphite on paper