1888 | brown printing ink on paper
1891 | printing ink on paper
1886 | brown printing ink on paper
1887 | printing ink on paper
1888 | printing ink on paper (14.446a), brown printing ink on paper (14.446b-e)
1886 | printing ink on paper
1860 | graphite on paper
etching
1886 | graphite on paper
1903 | graphite on paper