This 4mm. finescale “OO” gauge LNER Class B1 2-6-0 locomotive chassis has been upgraded and is substantially re-built. The existing motor and gearbox are in working order and await refitting, or alternatively, they can be replaced with motor/gearbox of choice. The chassis has been fitted with Romford driving wheels/axles. The leading bogie frame is awaiting the fitting of the finescale Romford wheelset (in the kit). The replacement cylinders are fitted and much of the Nu-cast valve gear rodding has been fitted with the remaining nickel-silver rodding still in the fret. The Nu-cast kit instructions leaflet is included.