Production:91830349
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year | DMM | company | production | cumulative | type | depth | seam | thickness | method | days | emp |
---|---|---|---|---|---|---|---|---|---|---|---|
1920 | Noah Ritter | 800 | 225 |
year | DMM | company | production | cumulative | type | depth | seam | thickness | method | days | emp |
---|---|---|---|---|---|---|---|---|---|---|---|
1920 | Noah Ritter | 800 | 225 |