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International Tower Hill Mines
International Tower Hill Mines
International Tower Hill Mines
2017
Aufsatz (Zeitschrift)
Englisch
Compton hill water tower, St. Louis
Engineering Index Backfile | 1899
Forbes Hill reservoir and water tower, Quincy, Mass.
Engineering Index Backfile | 1902
|Mine timbering in the old ironsides and knob hill mines
Engineering Index Backfile | 1902
|Wire rope tramway at the Bunker Hill and Sullivan Mines, Idaho
Engineering Index Backfile | 1896