The patch for the Apollo Soyuz Test Project (ASTP) and Astronaut Thomas P. Stafford, commander of the American crew; Astronaut Donald K. Slayton, docking module pilot of the American crew; Astronaut Vance D. Brand, command module pilot of the American crew; Cosmonaut Valeriy N. Kubasov, engineer on the Soviet crew; and Cosmonaut Aleksey A. Leonov, commander of the Soviet crew.