Cars Assigned to 'XP', Non-General Commodities: April 1974

                  20 Cars Total

20 Cars 18118, 18139, 18152, 18154,  18164, 18166, 18168, 18174, 18179, 18200, 18209, 18214, 18215, 18228, 18232, 18234, 18235, 18239-18241 Interoir fixtures, not suitable for general commodities

Information taken from The Official Railway Equipment Register, April 1974
ORER data courtesy Bernd Schroeder