Hope & Co.
Providence, Rhode Island
Directory of American Toolmakers Information
Hope & Co. made "Engraving machines."
HOPE & Co. PROV. R.I." on one side and "SPRING STEEL" on the other.
Very few examples of this short-lived company's endeavors at the cusp of the Industrial Revolution exist.
Nelson, Robert E., Ed. (1999). Directory of American Toolmakers: A listing of identified makers of tools who worked in Canada and the United States before 1900. Early American Industries Association.
/Inventoryofpictures/WebAlloyTypesPage2.html -- Inventory listing of machinist's rule possibly manufactured by Hope & Co.