Description: Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Sen. Hubert Humphrey, center, is briefed on Ditch witch machine at Perry plant by Edwin Malzahn, Charles Manufacturing Co. president while Sen. Carl T. Curtis, R-Neb., left, and Rep. John N. Happy Camp, R-Okla., listen."
Date: September 9, 1971
Creator: Argo, Jim
Item Type: Refine your search to only Photograph
Partner: Oklahoma Historical Society