Sleeping-car of the SZD (Soviet railways), of the OSShD-Y type built
in the 60s/70s. This type (24.5 m long, with UIC505 loading gauge) was 
designed for international service, the gauge can be changed by 
exchanging the  bogies. Technically they are very similar to the long
distance cars with wider carbodies. These cars have now disappeared 
from their intended service, replaced by new 26.4 m cars.

Photo by Tobias B. Köhler (unci@tigerden.com)