This system will be undergoing maintenance October 29th between 7:30AM and 10:00AM CDT.

Argo, Jim. Gilcrease Museum, photograph, May 1990; (https://gateway.okhistory.org/ark:/67531/metadc1662687/m1/1/: accessed October 28, 2020), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .