_:n9ca1d4a0fdd54bac9245574b3a55f8b3xb0
<http://schema.org/image>
<https://img.manufacturing.net/files/base/indm/all/image/2015/09/mnet_48336_ky_mine_2.png?auto=format%2Ccompress&fit=max&q=70&w=1200>
<https://www.manufacturing.net/supply-chain/news/13214290/no-union-mines-left-in-kentucky-where-labor-wars-once-raged>