Hello All....I know very little about early French canister rounds. Last weekend I came across what I thought was a canister round for the French 37x94. Measured it at home and it is actually 40x100. Headstamp is CR Mle 1879 APX 07. I know it's Atelier Puteaux dated 1907, but what is the actual weapon and does the CR stand for Canone Rapide ? I assume so because the head is bigger than the 37x94 and also the rim is different, with more for extractors to "grab" onto, needed with a rapid firing weapon. Or is CR for Canone Revolver ?? Sorry for such untechnical sounding questions. I've seen some amazing collections of these rounds on here and even this one is listed, right down to the headstamp, I would just like some info on the weapon please. Thanks in advance for any help.