A 2nd class passenger carriage, type 111Ac, of a newer design, as evidenced by the straight lower edge of the carriage and indiscrete windows in the doors without the possibility of opening them.

111Ac type carriage were produced in 1973-1975 in the number of 301 pieces by the PaFaWag Factory. They were characterized by a smooth roof, two entrance steps, and single-voltage steam-electric heating. An interesting fact is that the single-voltage coach intended for domestic traffic has the first pair of digits 51 and it traveled to the former Czechoslovakia.

The revision date of the coach is the mid-1970s, which allows it to be combined with carriages from era IV, i.e. 222060(1), 222070(1), 211020(1), 233010(1), 244060(1), and what's more, it can be combined with Odra  EX line. Warsaw coaches could be found in almost every corner of Poland. The carriage was also connected to the international line of that era.

Our model characterise:

• split door windows
• 2 switch boxes on the chassis and one battery box
• signs for smokers and non-smokers on windows in compartments
• silver frames in the windows
• wagon's interior painted in accordance with the standard of the era
• carriage markings typical for the IVb era
• recreated 2nd class comartments
• rubber rollers for connections between wagons (connection with short couplers eliminates the gap between coaches)
  
• luggage racks in each compartment
• windows in the corridor and compartment doors
  
• recreated 2nd class seats for a given type of carriage
• doormat on each end of the corridor
• the model is ready for ROBO 000002 lighting board installation, it has current collectors in the trolleys and all the necessary wireing inside the model.