An illustration from Frank Leslie's Illustrated Newspaper,April 20,1878,depicting workmen in the assay office molding melted bullion into bars. At times,the Comstock mills tried to prevent robbery by producing silver in bars so large that no one man could carry them | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / New York Public Library |
Taille de l’image : | 4638 px × 2431 px |
Model Release : | Non requis |
Restrictions : |
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