Colorado

Albert Bierstadt

late-19th century - early 20th century | printing ink on paper

late-19th century - early 20th century | graphite and ink on paper

late-19th century - early 20th century | graphite on paper

late19th century - early 20th century | graphite on paper

mid-19th century - early 20th century | graphite on paper

late-19th century - early 20th century | graphite with watercolor on paper