History: Soviet and vietnamese engineer working on a blueprint on one of a section of Hòa bình hydropower plant, 1979 [629x380]

https://i.redd.it/h3pjuu5hnpn51.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/iujjan/soviet_and_vietnamese_engineer_working_on_a/?utm_source=ifttt