Bonjour,
Here is some ideas for unconvential models with the tank Saint Chamond . . . . .
http://pages14-18.mesdiscussions.net/pages1418/Pages-d-Histoire-Artillerie/Artillerie-Speciale-chars-d-assaut/artillerie-speciale-etienne-sujet_2346_1.htm
Bon week-End - Michel
Great, thanks for the information. So the auxiliary crawler drive was at the bow is not just an idea!