Prototype: Swiss Federal Railways (SBB/CFF/FFS) older "standardized" design. Type AB4, 2nd and 3rd class. Type C4, 3rd class.
Model: The cars have separately applied roof vents. The car diaphragms can be changed. Total length over the buffers 67.8 cm / 26-11/16".
DC wheel set E700580.
An electric locomotive to go with these cars can be found in the Märklin H0 assortment under item number 37514.