CIE Diesel Fuel Oil Tank Wagon - Black - Pack 1With Cors Iompair ireann (CI) rolling out a series of freight stock throughout the 1950s 1960s based on a standardised triangulated underframe developed by its then Chief Mechanical Engineer, Oliver Bulleid, attention turned to transportation requirements for the companys own diesel fuel oil supplies. A total of 21 tank wagons were constructed at Inchicore during 1956 to augment and replace older types then in use. These tankers, with an 11 ton