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ODT system of port control. Joseph B. Eastman, Defense Transportation director (seated), checks a traffic channels map with Henry F. McCarthy (left), director of the Division of Traffic Movement, and V.V. Boatner, director of the Division of Railway Transport. These maps, changed daily, show nation-wide railway traffic conditions

ODT system of port control. Joseph B. Eastman, Defense Transportation director (seated), checks a traffic channels map with Henry F. McCarthy (left), director of the Division of Traffic Movement, and V.V. Boatner, director of the Division of Railway Transport. These maps, changed daily, show nation-wide railway traffic conditions

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