The name Bofors has been associated with the iron industry for more than 350 years. Located in Karlskoga, Sweden, it originates from the hammer mill "Boofors" founded 1646. The company was founded in 1873. Bofors' most famous owner was Alfred Nobel who owned the company from 1894 until his death in December 1896. He had the key role in reshaping the iron manufacturer to a modern cannon manufacturer and chemical industry. The Swedish firm of A.-B. Bofors built a 2-cylinder tractor based on the Advance tractor from the early 1930s. This was a Crude-oil tractor of 25/40 horsepower size.