P8731 - The NB diesel D6100 in blue

 le loco BR D6100 en bleu

Above is the later Jouef version of the model with different motor and different bogies from the original. It also employed a different fixing for the body, note the two slots at the bottom of the body side. It had raised ribs around the windows, number plates and double arrow symbols too. 

The Playcraft model is shown below has the original bogies and body fixing and lacks the white paint picking out the numbers etc.

This is how it looked in the HO International box in the final years of Playcraft