2409

E. Ruhling & Co. Assay Memorandum for the Summit Mill, 1870 [202731]

Currency:USD Category:Collectibles / Mining Start Price:100.00 USD Estimated At:200.00 - 400.00 USD
E. Ruhling & Co. Assay Memorandum for the Summit Mill, 1870 [202731]
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This small 7.80 ounce deposit likely represents them cleaning out the pan at the mill. The reason we believe this is that the assay is very "high grade" for the Comstock in that it is .222 gold, .756 silver. The back of the sheet also has a pencil notation that this is a pan test. Gold would be concentrated in the pans. The other time you would see high gold content on the Comstock is for surface deposits. Form is 8. x 14" with fold, toning, some discoloration on the reverse. Signed for Ruhling. E. Ruhling was an assayer and banker in San Francisco, California, & Virginia City, Gold Hill and Hamilton, Nevada. Ruhling was born in Hamburg, Germany and began to establish himself in San Francisco around 1858. By 1861, he was working and residing in Nevada. His business partner in 1862 was H.V.S. McCullough in the firm of Ed Ruhling & Co Bankers and Assayers in Virginia, Nevada Territory. In 1869, Ruhling operated an assay office at the new silver mining camp of Hamilton in eastern Nevada. Ruhling's business was bought out by McCullough in March, 1871. He returned to San Francisco working as an assayer and joined the Assay Department at the San Francisco Mint by 1878. Ruhling died in San Francisco at the age of 66 in 1898. The Ruhling Assay Office was given the order for making the last (gold) spike for the transcontinental railroad; the original is located at Stanford University.
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Date: 1870
Country (if not USA):
State: Nevada
City: Virginia City
Provenance: Douglas McDonald Collection