Production:91830107

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year DMM operator address production cumulative opening depth seam thickness method days emp
1889 Bracewell & Myers Danville 800 150
1890 2,000 210
2,800
1891 I. K. Bracewell 1,640 drift 28 #7 6 RP 180
1892 3,200 drift 30 #7 6 RP 210
4,840
7,640
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