English: Detroit Tractor Company advertisement in the journal Gas Power, September 1914. It exemplified the ways that manufacturers and distributors of motorized equipment competed against horse-drawn methods, with phrases such as "it eats only when it works", a common theme of the era. Tractor drawbars were designed to hitch directly to existing horse-drawn implements. This particular tractor, and various others of the 1910s, could even be controlled with reins.