Hi Akosion,
your GNT trucks are regular 4x2 trucks. your picture appears in the excellent and well-documented "L'Odyssee de la Colonne Leclerc", source of my information.
The 15th battery of the artillery of Force L in 1943 had 12 Marmon-Herrington trucks (page 167), the portee trucks (with 1897 75mm guns are mentioned on page 162 (artillery of Colonne Leclerc). No piccies of the trucks in this book.
Would it also be posible they had come from the French forces that had previously been at Bir Hakeim? I have checked the equally good (but more sentimental) "Bir Hakeim. la France renaissante book", to no avail.
Maybe on another francophone Forum?
Nuyt
Added later:
What we might be looking for is pictures of the vehicle nearest the camera (a 1942 Ford) but with front wheel drive by M-H.
That would make the truck sit much higher at the front. The front mudguards might be different ("shaved") to allow for more space for the front wheels.
Added even later:
Bart Vanderveen's post-war vehicles book mentions the French postwar army having 4x4 Ford/M-H trucks named 09W, which means they are of 1940 vintage (!) and must be related to the US Marine Corps' 09T as featured here:
http://www.mapleleafup.org/forums/sh...&threadid=3339
The trucks might have been delivered in 1940 to the French or either the Free or Vichy French troops somewhere in Africa or the Middle East.