Sleeping-car type P, CIWL No. 4550. Very few of these cars are preserved in their original state. 20 of them have been completely rebuilt in the early 1990s and are still running in daily service for ÖBB, SNCB and NS. The most notable differences before rebuilding are the twenty small compartments at two levels. After 1983 they could be used with a second class ticket and "T2" supplement in France - before, they were charged first class "Special" tariff (less expensive than a "Single").
Mulhouse, Cité du Train, 2006-06-02