Biblioteca Digital

3 resultados para Mine ventilation.

em Center for Jewish History Digital Collections

Dr. Moritz Hochschild addressing the crowd at the inauguration of the Mantos Blancos Copper Mine and Smelter; Antofagasta, Chile Portraits; Men

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Dr. Gerhard Goldberg, Dr. Moritz Hochschild and Richard R. Knobler (front row, l-r) at the inauguration of the Mantos Blancos Copper Mine and Smelter; Antofagasta, Chile Portraits Groups Men

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Dr. Moritz Hochschild kissing the bishop's ring at the inauguration of the Mantos Blancos Copper Mine and Smelter; Antofagasta, Chile portraits groups

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