M-R-S Farm tractors by factory

M-R-S Manufacturing was a manufacturer of four-wheel drive tractors and construction machinery, notably scrapers. M-R-S roots began with the Mississippi Road Supply Company in 1927, a distributor of International Harvester and other construction equipment. M-R-S later began assembling large tractors using engine and transmission components from other vendors. M-R-S entered bankruptcy in 1987.