History: Astronaut Gerald D. Carr, mission commander, uses his index finger to suspend astronaut William R. Pogue, Skylab 4, 1974 [1280 x 1920]

https://i.redd.it/9vbr6okbrl7z.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/6l82fg/astronaut_gerald_d_carr_mission_commander_uses/?utm_source=ifttt