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Miners with tools
Mines and Metallury building, Minneapolis, Minnesota
Mines and Metallury, class, Minneapolis, Minnesota
Mines and Metallury, pouring test, Minneapolis, Minnesota
Mines Experiment Station. Minneapolis Campus
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Minneapolis, Minnesota
Mines Experiment Station, Telecast on Taconite Process, Minneapolis, Minnesota
Mines Experiment Station, Telecast on Taconite Process, Minneapolis, Minnesota
Mines Experiment Station, Telecast on Taconite Process, Minneapolis, Minnesota
Mine shaft