- Class: mineral wagon
- Gauge: 4' 8.5"
N.C.B. is an orange "Private Owner" truck who transports coal, owned by the National Coal Board. He lived in Vicarstown, were Thomas worked as a station pilot.
N.C.B. first made a cameo appearance in the Railway Series story, Thomas and the Trucks. He later appeared in the "Meet Thomas" section of the 1979 annual and was depicted with a face.
N.C.B. is painted bright orange with white painted writing on both sides. His frameworks are painted black.
N.C.B. is based on a "Private Owner" 8 plank fixed-end coal wagon.
- N.C.B. resembles Fred Pelhay, another orange painted coal truck.
N.C.B. as part of Thomas
's first goods train
An N.C.B wagon in real life