Eisenhower’s personally-owned and -used pen knife. Case knife measures 2.5″ long with three different-sized pull-out blades, with the longest blade etched “D. D. E. Oct. 54.” Accompanied by a certificate of authenticity from David North which states: “My mother, Helen Weaver North, was General Dwight D. Eisenhower’s personal secretary at NATO Headquarters in Paris from 1951 and his secretary at the White House from 1953-1957. This is to certify that the pen knife pictured below was given by President Eisenhower to my mother.” In fine condition, with expected wear to blades and handle from use. Eisenhower owned several of these Case knives, and was so interested in the style that Case began referring to this pattern as the ‘Eisenhower,’ which is still sold by the company today. RR Auction COA.