The AB 011 first and second class mixed coach was originally built by Officine Elettro Ferroviarie Tallero in Corsico in 1907 as the D 668 baggage car for FNM. It was subsequently converted into the AB 011 first and second class mixed coach, and later converted in the 1960s into an X 0032 workshop coach. In 1973 it was chosen to be converted back to a historic first and second class passenger coach, regaining the number AB 011. The padded seating upholstered in green velvet and the lace headrests were restored to first class. The three second-class units were restored with bench seating in varnished wooden slats.
This coach is also similar to the first FNM coaches. 2-axle with spoked wheels. Metal chassis, leaf spring suspension. Wooden body with sheet metal exterior. Flat roof covered with tarred canvas. Access via two platforms, one at each end. Its weight is 11 tons and its capacity is 3 tons. Since 1974, restored in green and yellow, it has been part of the FNM historic train pulled by the 200-05.