The first Heavy Duty pictured was shipped from the factory on February 7, 1956 to Darley Company, Chippewa Falls, Wisconsin. It was shipped with a 6.5 inch barrel, nickel finish and checkered walnut magna grips.
The second Heavy Duty pictured was shipped from the factory on March 22, 1955 to Lawrence E. Bogert Co., Sandusky, Ohio. It was shipped with a 6.5 inch barrel, blue finish and checkered walnut magna grips.