c. 1916-1921 Ingeco Type W 3 HP Engine

 This engine (serial #20774) was built by the Worthington Pump and Machinery Corporation at its Ingeco Pump Works plant in Cudahy, Wisconsin. Before 1916, Ingeco (the International Gas Engine Company) was a subsidiary of the International Steam Pump Company which consisted of several firms. The International Steam Pump Company was organized in 1899, and Ingeco began producing engines in Cudahy, Wisconsin, as early as 1912. In 1916, the International Steam Pump Company, which had been very successful, was reorganized and renamed the Worthington Pump and Machinery Corporation. From the time of this reorganization until 1920 or 1921, Worthington continued producing Ingeco engines, adding Type W to the engine's name. This particular Type W engine was reportedly used near Lushton, Nebraska, about 45 miles east-southeast of Grand Island.

From Tractor and Gas Engine Review,
vol.11, no.2 (February, 1918), p. 66.

 If you look closely at the side of this engine, you might notice that it has a Wizard magneto for its ignition system. If this starter is the original or it is an accurate replacement, we might even date this engine to sometime between 1916 or 1917 and late 1919. According to Chris Jerue, in the article titled "The History of Ingeco Engines," the Type W included Wizards as standard from early 1917 to the end of 1919. Near the end of 1919, the company switched to a Webster magneto.

 If you look along the top of this Ingeco engine, you might notice a small brass cup sticking up from the engine. This is a Lunkenheimer Brass Oil Cup made by the Lunkenheimer Company of Cincinnati, Ohio.  This company was founded as the Cincinnati Brass Works in 1862 by Frederick Lunkenheimer, a German immigrant to the U.S.  Over the first several years in business, Lunkenheimer made a wide variety of valves, lubricators, steam engine attachments, and other brass items.  After Frederick's death in 1889, his son, Edmund, took over leadership of the company.  Edmund was a very inventive person, obtaining several patents for valves and lubricators.  In 1902, the company opened a new 150,000 square foot factory, employing about 700 workers.  The factory produced items not only for the U.S. market, but for markets throughout the world.  You can see a 1906 Lunkenheimer illustrated catalog, showing this brass cup and the company's other products by clicking or touching here.

From the Lunkenheimer Factory 1906 Illustrated Catalog
and Price List. Published in Cincinnati, Ohio.

Notes

Some information on Ingeco engines can be found in C. H. Wendel, American Gasoline Engines Since 1872, ed. George H. Dammann (Sarasota, FL: Crestline Publishing Co., 1983), pp. 565-566.
More information can be found in Chris Jerue, “The History of Ingeco Engines,” Gas Engine Magazine: Preserving the History of Internal Combustion Engines (August/September, 2011). Part 1 can be accessed here. Part 2 (October/November, 2011) can be accessed here.
The information on the Lunkenheimer Company in 1902 is from Electrical World and Engineer, vol. XL, no. 18 (November 1, 1902).