I got a 60x64R case at a flea market today, can anyone post a photo of a round with its projectile in place, or a diagram of a loaded round? The case mouth actually measures about 63mm, but the case is correct length and does not appear to have been cut down. The extra few mm makes me think that this could be a round that had its driving band inside the case mouth. Is that true?
I am sure of the German Navy connection with this case as it had the crown over capital M. The full headstamp is: “M PATRONENFABRIK #KARLSRUHE# V 1917 143. (”#" Indicates flaming bomb markings). Any photos/drawings/information would be helpful. How common is this case? I have never seen one before.