1938 photo At Monopoly hearing. Washington, D.C., Dec. 1. Dr. Willard Thorp, left, Dun and Bradstreet Economist not with the Commerce Department. Leon Henderson, Secretary of the Joint Monopoly Committee, chat informally as both attended the opening heari

1938 photo At Monopoly hearing. Washington, D.C., Dec. 1. Dr. Willard Thorp, left, Dun and Bradstreet Economist not with the Commerce Department. Leon Henderson, Secretary of the Joint Monopoly Committee, chat informally as both attended the opening heari  

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