In Denver, a banking company begins producing pure gold coins at a privately owned mint

For bankers in fledgling Denver gold dust was proving an unwieldy and expensive form of exchange.  Accordingly, Clark, Gruber, and Company set up a private mint and began minting pure gold coins on July 20, 1860 bearing the name of the company.  Fully legal, the mint produced $3,000,000 in coins over the next thirty months.  The U.S. Treasury authorized the Denver Mint in 1862 and purchased the operation in 1863. (By John Osborne) 
Source Citation
John Jay Knox, A History of Banking in the United States (New York: Bradford Rhodes and Company, 1903), 829-830.
    Date Certainty
    Exact
    Type
    Business/Industry
    How to Cite This Page: "In Denver, a banking company begins producing pure gold coins at a privately owned mint," House Divided: The Civil War Research Engine at Dickinson College, https://hd.housedivided.dickinson.edu/index.php/node/32572.