Prototype: Swiss Federal Railways (SBB-CFF-FFS) older
"standardized" designs. Type AB4, 1st and 2nd class. Type C4, 3rd
class. Type F4, baggage car.
Model: The cars have inset roof vents. The diaphragms can be
changed. Total length over the buffers 67.8 cm / 26-11/16".
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