Scale not given. Title from verso pasted on. Manuscript, watercolor and ink. Labels pasted on to show distance. Pictorial map. Relief shown pictorially. Shows the Yellow River water control system in Henan Prov More
Scale not given. Title from verso pasted on. Manuscript, watercolor and ink. Labels pasted on to show distance. Pictorial map. Relief shown pictorially. Shows the Yellow River water control system in Honan Prov More
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 Prov More
Scale not given. Title from verso pasted on. Manuscript, watercolor and ink. Labels pasted on to show distance. Pictorial map. Relief shown pictorially. Shows the Yellow River water control system in Henan Prov More
Picryl description: Public domain image of a political campaign, politician, office meeting, 1930s, mid-20th-century United States, free to use, no copyright restrictions.
Public domain photograph of Washington DC, 1930s, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of a political campaign, politician, office meeting, 1930s, mid-20th-century United States, free to use, no copyright restrictions.
Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of a woman working, women labor, 1940s, economic conditions, home front, world war two, free to use, no copyright restrictions.
Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.
Picryl description: Public domain photograph of a child of a farmer, migrant worker, Great Depression era, economic conditions, free to use, no copyright restrictions.