This system will be undergoing maintenance March 8th between 8:00AM and 11:00AM CST.

Meyers Photo Shop. IBM Exhibit, photograph, July 1950; (https://gateway.okhistory.org/ark:/67531/metadc1119611/m1/1/: accessed March 7, 2021), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .