Group of four official softcover reports published by NASA's Manned Spacecraft Center, chronicling the beginnings of Project Mercury—America's first journeys into space. Includes: Results of the First United States Manned Orbital Space Flight, February 20, 1962; Results of the Second United States Manned Orbital Space Flight, May 24, 1962 (NASA SP-6); Results of the Third United States Manned Orbital Space Flight, October 3, 1962 (NASA SP-12); and Project Mercury: A Chronology (NASA SP-4001). In overall very good condition, with staining and pencil marks to covers of the first report, tape repair to spine of the third report, and some scuffs and surface wear to covers of the last report; internal pages are generally fine.
