I said the last delivery was in 1985. I meant to say that the last order was 1985. It is quite possible that deliveries continued for another 3 years.
I also said that subsequent deliveries of 2nd class coaches came from the UIC-Z series. I mean subsequent to 1985. The first delivery of the new Bz coaches came around 1987. Those coaches were painted to match the existing Gran Comfort coaches, in the Bandiera livery. Prior to that, 2nd class rolling stock had come from the UIC-X production.
I hope that clears up my statement.