Atlas Ho Etat Railcar Self-propelled Unit Type Z 1561 3rd to 5th Série 1924-1929 Motorized & Trailer ZRx 11521 no Box

Atlas Ho Network State railcar motor type Z 1561 3rd to 5th series 1924-1929 powered & trailer ZRx 11521, green with gray roof, with fitted interior. Each 227 mm long. 12V DC analog. 
Powered motor car with a motor bogie attached to the body by a screw on top of the roof, motor car and trailer with metal axles and wheels. 

Very good condition, missing two roof ventilators on the motor car, loop couplers except at the front of the motor car which has none, no boxes.