Category:Mineral resources of the United States, 1917 (1921)

Media in category "Mineral resources of the United States, 1917 (1921)"

The following 4 files are in this category, out of 4 total.

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  Mineral Resources of the United States, 1917-Part I-Metals (1921) (14592524159).jpg 3,380 × 2,112; 783 KB
  
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  Mineral Resources of the United States, 1917-Part I-Metals (1921) (14592548788).jpg 3,248 × 2,028; 688 KB
  
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  Mineral Resources of the United States, 1917-Part I-Metals (1921) (14776043591).jpg 3,480 × 2,268; 825 KB
  
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  Mineral Resources of the United States, 1917-Part I-Metals (1921) (14778841792).jpg 2,144 × 2,820; 742 KB