Edward N. Kent of the United States Assay Office at New York contains a printing circular describing Kent's Patent Apparatus for Separating Gold as described in his letter of March 7, 1855.
James B. Guthrie (1792 - 1869), United States Secretary of the Treasury from 1853-1857, writes to James Curtis Booth (1810-1888) with an order for fusible alloys from Mobile, Alabama.
James B. Guthrie (1792 - 1869), United States Secretary of the Treasury from 1853-1857, writes to James Curtis Booth (1810-1888) with an order for fusible alloys from Cincinnati.
James B. Guthrie (1792 - 1869), United States Secretary of the Treasury from 1853-1857, writes to James Curtis Booth (1810-1888) concerning financial matters.
