This 1959 Mercedes-Benz U411 Unimog is being offered at no reserve and has a pre-auction estimate of $50,000–$60,000, a number that reflects a first-generation truck in freshly restored condition.

Originally manufactured by Boehringer from 1948 until 1951 when the luxury automaker took over production, the Unimog is still going strong 75 years later. It's a highly customizable truck that ...