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Jumbo Extension Mining Company correspondence, certificates, and assay reports
Date
1915 to 1920
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
Various mining companies accounting receipts
Date
1910 to 1915
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
Charles S. Sprague Company correspondence and records
Date
1906 to 1912-08
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
Charles S. Sprague Company correspondence and records
Date
1912-09 to 1912-12
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
Charles S. Sprague Company correspondence and records
Date
1913-01 to 1913-03
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
Charles S. Sprague Company correspondence and records
Date
1913-04 to 1913-12
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
Charles S. Sprague Company correspondence and records
Date
1914
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
Charles S. Sprague Company correspondence and records
Date
1915-01 to 1915-07
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
Charles S. Sprague Company correspondence and records
Date
1915-08 to 1915-12
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
Charles S. Sprague Company correspondence and records
Date
1916
Description
From the Charles S. Sprague and Benjamin Gill Papers on Nevada Mining (MS-00570).
Text
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