Twin City "40" Farm TractorThe MS&M Co. engaged in the singular steel fabrication business until 1910, when the Joy-Wilson Company of Minneapolis was hired to design a tractor for them. The tractor that was designed later evolved into the famous Twin City "40" tractor, and began the company's successful venture into the tractor business. A few years later, the MS&M Co. expanded its role in the tractor business by subcontracting to build heavy tractors for other manufacturers like Case Threshing Machine Company, and Bull Tractor Company.
Lightweight Farm TractorsBy the late teens, MS&M Co. engineers realized the trend in tractor design was moving away from the massive behemoths that were their specialty, to smaller, cheaper, and more compact tractor designs. As a result, an entirely new line of lightweight tractors was engineered, supplemented by a new line of threshing machines and farm trucks. The new line of lightweight "Twin City" tractors were very well engineered, and as a testament to their quality they later served as the basis for the entire Minneapolis-Moline tractor line.