This ultra-streamlined Reo tractor was specially W the earliest production fifth-wheel trailers. Custom ks. its innovative cab-W , rrlaqe Works of Los m ' V was constructed by Standard Ca or trucks and other commerciai W: specialized in bodies f a storage area, sleep driver, and a separators auxiliary power. A Williams air-brake s . ttached 10,000-poun s fitted with a 300horsepow .7 , , L, ine wore out after more than Emmamm I