History: A glowing hot Swiss Army Panzer 68 hull being heat treated in an oil bath, at an Eidgenoessische Konstruktionswerkstaette facility in Thun, Switzerland, 1977. [4879 × 3976]

https://i.redd.it/svs2pg5d526z.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/7eo0bw/a_glowing_hot_swiss_army_panzer_68_hull_being/?utm_source=ifttt