Flag commemorating the Phase 1 Program flown to the Mir Space Station aboard the Space Shuttle Discovery on mission STS-91, June 1998

The artifacts series is comprised of the many awards, certificates, plaques, NASA service awards and tokens of appreciation presented to Leestma throughout his career. The awards range from one of his first; a plaque presented, "To Lt. Dave "Wiz" Leestma for achieving 1000 hours in the F-14 Tomcat," a Legion of Merit, Distinguished Flying Cross, NASA Exceptional Service Medal, NASA Space Flight Medal, Certificate and Medallion - 1st Shuttle Flight Achievement Award, NASA Medal for Outstanding Leadership, and a NASA retirement plaque, to name a few. Also included are flags, patches, a piece of payload bay liner flown in Space on the Orbiter Atlantis during the STS-125 mission, Hubble Space Telescope Service Mission, and other tokens of appreciation often attached to signed photographs of Shuttle crews and presented to Leestma. There is a large wooden box containing Orbital Space Plane models of potential boosters that was presented to Leestma when he was project manager.