U. S. Geological Survey, Map of Topography, State of Ohio, Ohio Lisbon Quadrangle from Burchfield's Studio, c. 1911-1915; ink on paper with notations by Charles E. Burchfield, 20 x 15 inches; Burchfield Penney Art Center, The Charles E. Burchfield Archives, Gift of Harriet and Mortimer Spiller, 1976