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TitleDateType
1 American Mining Congress: Fletcher, Andrew1957-10-05Image/StillImage
2 American Mining Congress: Parkinson, C. J. -Shot 11957-10-05Image/StillImage
3 American Mining Congress: Parkinson, C. J. -Shot 21957-10-05Image/StillImage
4 American Mining Congress: Willis, Charles F. -Shot 11957-10-05Image/StillImage
5 American Mining Congress: Williston, S. H. -Shot 11957-10-05Image/StillImage
6 American Mining Congress: Williston, S. H. -Shot 21957-10-05Image/StillImage
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