History: Teeming a crucible of steel at the Colonial Steel Company, Pittsburgh in 1912 [530x644]

https://i.redd.it/zau98x140ln11.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/9hp18m/teeming_a_crucible_of_steel_at_the_colonial_steel/?utm_source=ifttt