 The Diamond Calk Horseshoe Company was founded in 1908 and later became a major manufacturer and exporter of wrenches and automotive tools.Duluth's huge wholesale Marshall Wells Hardware Company expanded in 1901 by opening branches in Portland, Oregon, and Winnipeg, Manitoba; the company catalog totaled 2,390 pages by 1913.The Duluth Showcase Company, which later became the Duluth Refrigerator Company and then the Coolerator Company, was established in 1908.