Production:91830224

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year DMM company production cumulative type depth seam thickness method days emp
1903 Fred L. Brennerman 800 drift 60 #7 6 RP 300
1904 875 drift 60 #7 6 RP 150
1905 750 drift 60 #7 6 RP 150
1906 0
1907 200 drift 60 #7 6 RP 60