4-piece electric multiple unit ", Blokkendoos", of the Dutch State Railways that consists of BD 9123/ B 8506/ C 8514/ C 9023. Operation condition: around 1945. With inscriptions and colours true to the original. Etched plates, limited edition, in exclusive special packaging. Model with interior that is rich in detailing. Electric interface for multiple units according to NEM 652 standards. Engine with mass flywheel. Drive on four axes, two traction tires. Light changeover from white to red. Specifications: General data Number of axles with traction tyres 2 Number of driven axles 4 Coupling NEM shaft 362 without KK-kinematics Flywheel yes Electrical Digital decoder Sound yes Motor 5-pole motor LED lighting no Interface Electrical interface on traction units type NEM 652 with plug-in fixture Head light 3-headlight and 2 tail lamps direction dependent Measurements Length over buffer 916 mm