In the Showa Era era, railroad luggage was carried by luggage cars connected to passenger trains, but as the transportation volume increased, dedicated luggage trains began to operate, and Tokaido / Sanyo Main Line and Express luggage trains were also operating on the trunk lines of the Tohoku Main Line.
In 1968, pallet transportation started with a new pallet truck that appeared as a trump card for modernizing luggage transportation. Among them, Mani 44 is called the completed form of the pallet luggage car. At first glance, it is characterized by the appearance of a freight car, and you can see that it is active in various places in combination with conventional luggage cars and postal cars.