This Command Module, #111, was flown on the Apollo-Soyuz Test Project (ASTP). Astronauts Thomas Stafford, Vance Brand, and Deke Slayton flew the mission, which was launched on July 15, 1975, seven hours after the Soyuz 19 was launched in the USSR with cosmonauts Alexei Leonov and Valeriy Kubasov aboard. The Apollo maneuvered to rendezvous and dock 52 hours after the Soyuz launch. Once docked, Apollo and Soyuz crews conducted a variety of experiments over a two-day period. After separation, Apollo remained in space an additional 6 days. Soyuz returned to Earth approximately 43 hours after separation. The Apollo capsule splashed down on July 24, 1975, marking the end of all missions with the Apollo spacecraft.

Command Module 111 was offered by NASA to the Smithsonian in 1975. Ownership was transferred in February 1976 at which time the Command Module was placed on public display at the NASA Kennedy Space Center. Since 2005 it has been displayed at the California Science Center in Los Angeles.