undated
irregular: 17.46 x 24.13 cm (6 7/8 x 9 1/2 in.)
Oil paint on offset lithograph, 1989 edition of Flora de la Real Expedición Botánica del Nuevo Reino de Granada (1783-1810)
21st centuryPeruvianBlack and aqua crayon on paper
20th centuryGermanGraphite on paper
20th centuryGermanWatercolor, gray ink, and graphite on off-white wove paper
20th centuryBritishGraphite over watercolor on off-white wove paper
19th centuryAmericanOil over graphite on darkened cream wove paper
19th-20th centuryAmericanColored marker and balck pen on paper
Brown ink over graphite on white wove paper
19th centuryDutchBlack crayon on paper
20th centuryGermanGray wash and brown ink; verso: brown ink
17th-18th centurySpanishGraphite, black crayon and ink on paper
20th centuryAmerican?Brown ink on cream antique laid paper; verso: black chalk and brown ink
16th centuryItalian