A very beautiful model indeed! They must have visited a local heritage railway to capture all those details correctly.
It seems like they have looked a little too close at a real class B as one connecting rod can be seen placed on the foot board, which is the normal place to put them when the loco was disassembled for cold transportation ("nedkopplad" is the Swedish term for this, don't know the English term). This is often the case with preserved B engines today when they are not under steam. But at the same time another connecting rod can be seen in the valve gear...
I suggest the engine has traveled to France by a time traveling machine, as the loco is in a 1930s-1940s variation.
This B model has a enclosed cab and class B engines where not being rebuilt with this until the 1930s. Furthermore the loco is fitted with air brakes system Knorr, which were not available until after the WW1 for logical reasons (Knorr is a German company). It is also fitted with gas lighting using acetylene, not the paraffin lights it should have been fitted with during the first war.
