Scale not given. Title from verso pasted on. Manuscript, watercolor and ink. Labels pasted on to show distance. Relief shown pictorially. Pictorial map. Shows the Yellow River water control system in Henan Province. Hummel gift 1962, no. 7. Available also through the Library of Congress Web site as a raster image. AACR2: 650/1; 650/2
Hummel, Arthur W. (Arthur William)
1876
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