Charles E. Burchfield (1893-1967), Conventions for Abstract Thoughts, 1917; Gray cardboard, brown paper tape and brass fasteners; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006
Charles E. Burchfield (1893-1967), Conventions for Abstract Thoughts: Untitled (Fear 2), 1917; pencil on paper, 8 1/2 x 5 1/2 inches; Burchfield Penney Art Center, Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006
Charles E. Burchfield (1893-1967), Altoona - 1936 / Winter 1943; commercially made unlined paper sketchbook, 10 1/8 x 7 7/8 inches; Burchfield Penney Art Center, Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006
Charles E. Burchfield (1893-1967), Skippy, c. 1937; conté crayon on paper in bound sketchbook, 5 1/2 x 7 3/4 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006
Charles E. Burchfield (1893-1967), December Booklet, December 2, 1907; watercolor on paper, 4 3/8 x 3 1/2 inches; Burchfield Penney Art Center, Gift of the Charles E. Burchfield Foundation, 2006
Charles E. Burchfield (1893-1967), Bloodroot (Sanguinaria Canadensis), April 4, 1911; ink on paper, 9 x 6 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation2006
Charles E. Burchfield (1893-1967), Common Violet (Viola pamata var. cuculata), ca. 1911; ink on paper, 9 x 7 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006
Charles E. Burchfield (1893-1967), Green-Leaved Spring-beuty (Claytonia Virginica), ca. 1911; ink on paper, 9 x 7 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006
Charles E. Burchfield (1893-1967), Common Hepatica (Hepatica triloba), ca. 1911; ink on paper, 9 x 6 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation
Charles E. Burchfield (1893-1967), Rowan Tree, American Service –Tree or American Mountain Ash, November 8, 1911; ink on paper, 8 7/8 x 7 inches; Charles E. Burchfield Foundation Archives, Gift of the Charles E. Burchfield Foundation, 2006