Hynson Tools & Supply Co.
St. Louis, MO
Cooper Tools, Wood Planes
Augustus R. Hynson first worked for Hall & Hynson in 1851, which is assumed to provide the "EST. 1851" mark.
HYNSON/EST./TOOLS & SUPPLY Co/1851/ST. LOUIS (top and bottom line curved, third line widening from the center); I. HYNSON TOOL & SUPPLY CO. ST. LOUIS
Hynson marketed largely to coopers and was the first to produce a barrel heater.
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.
Hynson Tool & Supply Company. (1903). 52 annual catalogue: Hynson Tool & Supply Company. Facsimile of the original. Mid-West Tool Collectors Association and the Early American Industries Association.