Official 'Type 1' glossy 10 x 8 black-numbered NASA photo (S-61-4396), showing Enos the chimpanzee being fitted into his pressure couch prior to his orbital flight from Cape Canaveral. On November 29, 1961, Enos would orbit the Earth on board Mercury-Atlas 5, becoming the third hominid—after cosmonauts Yuri Gagarin and Gherman Titov—to achieve Earth orbit. Reverse bears purple NASA caption text and an "Original NASA Photograph" stamp. In fine condition.