Here we have an Old Vintage OLIVER CHILLED PLOW CO. No. ST21 Farm Equip. Tractor Implement Iron Lug Wrench.  In 1857, James Oliver (South Bend, IN) received a patent to make “chilled” plows. The plows were cast in a mold which allowed the metal to be cooled rapidly, resulting in a hard surface that kept a sharp edge. The plows were also extremely smooth, alleviating the problem of sticking soil.  Oliver’s plows became commonplace throughout the United States and around the world. By the turn of the 20th century, he employed over a thousand men and produced as many as three hundred thousand plows a year, living up to its slogan, “Plowmakers for the World.”  The history of this company and wrench pictures can be found in  "The History of Old Time Farm Implement Companies & the Wrenches They Issued" by P. T. Rathbone.  This example appears to be a "Lug-Style" Wrench and is in Good 'used tool' condition with minor wear and corrosion marks.  No cracks, breaks or repairs.  It is approx. 11" long x 7" wide.  Please review pics to confirm condition !



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