Charles Demuth, Amaryllis, c. 1923, watercolor over graphite, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/172894

Charles Burchfield, Church Bells Ringing, Rainy Winter Night, December 1917, watercolor and gouache over graphite on wove paper, Cleveland Museum of Art, Cleveland. https://dartabase.art/cite/cleveland/127227