mid-19th century - early 20th century | iron gall ink on paper
1881 | printing ink on silk fabric
late-19th century - early 20th century | printing ink on paper
late 19th century | graphite on paper
September 6, 1879 | graphite on paper
August 21, 1879 | graphite on paper
1883 | printing ink on paper
1879 | printing ink on paper