Production:1830100

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year DMM operator address production cumulative opening depth seam thickness method days emp
1888 Thompson & Billman Fairmount 2,800 ug 175
1889 1,152 158
1890 1,680 170
5,632
1891 George Emmett, No. 2 1,410 shaft 98 #7 5.5 RP 130
1,410
7,042