It is Traditional O Gauge

As with our Master Series

The Trainz SKU for this item is P11564570

This car features a plastic body with operating knuckle couplers

Budd RDC-2 Coach-Baggage - Standard DC - PROTO 1000(TM) ProductID_11504958 It is Traditional O GaugeThis is a WalthersProto 920 35300 HO Scale Budd RDC 2 Coach Baggage Standard DC PROTO 1000(TM) Baltimore & Ohio #6551 (Plated Finish) Download the Instruction Sheet (729 K bytes, PDF format) * Now With Real Metal Finish * Revised Circuit Board with NMRA 8 Pin Plug for Easy DCC Conversion * 4 Wheel Drive & 8 Wheel Electrical Pickup * 5 Pole Skew Wound Motor * Flywheel Equipped * Authentically Contoured Radiator With Realistic Fan * RP 25 Metal Wheels *