S4101-01A Robinson A5 (GCR Class 9N) 4-6-2 GCR Great Central Green No.372 Steam Tank LocomotiveLimited production run so order now to secure yours today! Sonic Models has unveiled its first 4mm locomotive: the imposing and stylish Robinson GCR LNER 9N A5 4 6 2T. Version: Great Central Railway Green No. 372 The Sonic model available in both original GCR and later LNER versions and features a heavy die cast chassis, flywheel, Next18 DCC socket hidden in the cab, pre fitted sugar cube, NEM coupling pockets, sprung buffers and all models will be