Public domain
ODT system of port control. Operator Jack Keefe, in the International Businees Machine (IBM) room of the ODT (Office of Defense Transportation), feeds the coded punched cards into the machine which records and tabulates by channel, section, zone and individual railroad the movement of all freight tr
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Credit lineODT system of port control. Operator Jack Keefe, in the International Businees Machine (IBM) room of the ODT (Office of Defense Transportation), feeds the coded punched cards into the machine which re. 1942-01-01. Freeman, Albert. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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