John J. Powers papers Search Results
Your search for subject "Shotcrete-lined tunnels" resulted in 3 items (viewing results 1 - 3 )
- Item Title: Butte miner - fire filler
- Date Created: 1937/1949
- Abstract: Photographs of mines and miners in Butte, Montana in the late 1930s and 1940s.
- View additional details about this item.
- Item Title: Butte miner - fire filler
- Date Created: 1937/1949
- Abstract: Photographs of mines and miners in Butte, Montana in the late 1930s and 1940s.
- View additional details about this item.
- Item Title: Butte miner - fire filler
- Date Created: 1937/1949
- Abstract: Photographs of mines and miners in Butte, Montana in the late 1930s and 1940s.
- View additional details about this item.
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