the suni41 was a 4 axle box car similar to the waki10000 and originated in the late 1960s as a palletized hauler of baggage on passenger trains..........the waki10000 had been designed in the mid 1960s as JNR attempted to develop high speed freight service to staunch the loss of freight to the post wwll recovery highway system......13 wagons were constructed to the suni41 configuration featuring a conductor's room with speed control equipment.......obsolescence occurred in the late 1980s as the shinkansen were dominating the main passenger routes and as denationalization of JNR mandated the cessation of unprofitable small luggage transport services........
please note the conductor's office at one end of the wagon; the led tail lights also feature on that same end........