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Subjects
- Chemical warfare -- United States2
- Executives2
- Insurance companies -- United States2
- Life insurance -- History2
- World War, 1914-19182
- World War, 1939-19452
- Agricultural machinery industry1
- Banks and banking -- United States -- History1
- Capitalists and financiers1
- Industrialists1
- Industries -- United States1
- Photograph albums1
- Steel industry and trade -- United States1