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Production:91830156
(Redirected from Production:1830156)
| year | DMM | operator | address | production | cumulative | opening | depth | seam | thickness | method | days | emp |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1894 | John Beard | Danville | 550 | surface | 12 | #7 | 6 | 60 |