A 2nd class passenger coach, type 111Ab of an older design, as evidenced by the rolled-up lower edge of the coach and the door windows that slide down, which is new in our models and at the same time an element characteristic of older designs of Y-type carriages.

Type 111Ab carriage were produced in 1971-1972 in 212 pieces by the PaFaWag Factory. They were intended for international traffic. They were characterized by a smooth roof, two entrance steps, and steam-electric, multi-voltage heating.

The revision date of the carriage is the mid-1970s, which allows it to be combined with coaches from era IV, i.e. 222060(1), 222080(1), 211020(1), 233010(1), 244060(1), and what's more, it can be combined with EX composition. Warsaw coaches could be found in almost every corner of Poland. The model was also connected to the international line of that era.

Our model characterize:

• rolled-up lower support
  
• 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.