Bonsoir,
On French Ebay, a beautifull photos album from an AS 12 Group's tank commander : MdL Brunet de Bonneville (Killed in October 1917 at La Malmaison).
Inside this album, two photos from prototyp Schneider Ca2 Command Post in Champlieu (photo from March 1917)
The two photos, with some commentaries, here in this topic about Schneider Ca2.
http://pages14-18.mesdiscussions.net/pages1418/Pages-d-Histoire-Artillerie/Artillerie-Speciale-chars-d-assaut/artillerie-commandement-schneider-sujet_377_1.htm
Bonne lecture - Michel
Wow, Michel. That's a beauty.
"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.
fantastic