Production:0110057

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year DMM operator production cumulative opening depth seam thickness method days emp
1926 Ralph W. Hodgett 1,000 100 14
1927 1,935 200 9
1928 1,100 ug 331 10
1929 3,520 ug 150 10
7,555
1930 James G. Johnson 1,365 ug 300 12
1,365
8920