18th-19th century
Black marker on paper
20th centuryGermanBlack ink on off-white wove paper
20th centuryAmericanGraphite on paper
20th centuryGerman?Black crayon on paper
20th centuryGerman?Graphite on paper
20th centuryAmericanRed chalk on illustration board
20th centuryAmericanGraphite on paper
20th centuryGerman?Ink on paper
20th centuryAmericanBrown wash and graphite on pale gray modern laid paper
18th-19th centuryFrenchGraphite on paper
20th centuryGerman?Black ink on white wove paper
20th centurySpanish