Below is a link to a now unclassified 1959 U2 Pilot's Manual. It has some interesting pictures and drawings of the U2 cockpit area that show the KWM-1 remote control as well as some of the other communications equipment. https://www.cia.gov/library/center-for-the-study-of-intelligence/utility-flight-hb-1-Mar-1959.pdf Ben Wallace