Very Interresting sites thank you.
We can notice that website people are looking for "old regimental internal news papers" with the "Artillerie spéciale" badge on their cover.
The funny thing is in nowadays French Armor only one regiment is allowed to bear on the "beret" this "Artillerie spéciale" badge, on the black beret. It is the 501 RCC : The 501è Régiment de Chars Combat. The rest of the French Armor wear the knight helm on the dark blue "beret". Excepted the Legion who wears the grenade but a white silver one on their green "beret". Because the Armor colour is white.