Although not a major component of the Rock Island Plow Company lineup, the disc plow did have a prominent place. One of the few implements RIPC did not develop significantly in house, instead relying on the Newell Sanders Company of Chattanooga TN. Although it is indicated in some sources† that RIPC partnered with Sanderís starting sometime around 1916 or 1917, the below pictures come from the 1913 RIPC catalog, so either RIPC did have a disc plow already or the accepted date is incorrect.† The partnership with Sanders also brought a new chilled plow line to RIPC and over the next few years Rock Island† also manufactured Sanders Plows. In 1927 Rock Island purchased the Newell Sanders Plow Company and closed the Chattanooga plant. The IH company had also purchased plows from the Newell Sanders Co, as well as from Newell Sanders original company that he had since retaken control of, The Chattanooga Plow Company. IH acquired the Chattanooga Plow Company in 1919 and Sanders continued to operate Newell Sanders.