I'm wondering if someone might be able to advise which unit carried a Diamond as a marking on their Schneider CA-1 Tanks during Second Battle of the Marne. I have seen these sort of vehicles with a Heart on them, but not a Diamond.
Background is I recently purchased a number of photos including one of three knocked out Schneider CA-1's which came from a US Family, with the words "French Tank (Reims) Juvincourt on the rear. Tank has taken a larger caliber artillery hit and seems to have burnt, the other two are harder to tell. I'm hoping I can caption the photo correctly with any information you can provide.
Thank you for the information. Based on what I read within the article then this tank would be a Group 4 tank, no other markings are visible (although I'll see if I can bring any further detail out in the photo - a small version is attached for viewing)