History: "John H. Glenn, one of the Mercury Seven Astronauts, runs through a training exercise in the Mercury Procedures Trainer at the Space Task Group, Langley Field, Virginia.", 1960 [2824 x 2118]

https://i.redd.it/afh9t5hnq4qy.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/6408r2/john_h_glenn_one_of_the_mercury_seven_astronauts/?utm_source=ifttt