Hello all,
I've just received another German 37mm round with the 'M' (Navy) impression on the headstamp. I noticed the similarity with a projectile I already have which I thought was a tracer and probably used with a revolving cannon.
The existing projectile had an alloy base plug which I did not want to risk removing as it was so fragile. The recent round has no base plug but clear signs of alloy residue inside. I'm told that these were commonly used on U Boats during WW1. Both cases were made at Karlsruhe, one Mk III dated 1904, and the other Mk IX dated 1908. The 1908 one has five punch marks on the headstamp, could these be re-loading marks? I'd appreciate any information on these and whether they were used on U Boats. I can't imagine a U Boat being armed with a revolving cannon?
Thanks in advance,
navyman.
I've just received another German 37mm round with the 'M' (Navy) impression on the headstamp. I noticed the similarity with a projectile I already have which I thought was a tracer and probably used with a revolving cannon.
The existing projectile had an alloy base plug which I did not want to risk removing as it was so fragile. The recent round has no base plug but clear signs of alloy residue inside. I'm told that these were commonly used on U Boats during WW1. Both cases were made at Karlsruhe, one Mk III dated 1904, and the other Mk IX dated 1908. The 1908 one has five punch marks on the headstamp, could these be re-loading marks? I'd appreciate any information on these and whether they were used on U Boats. I can't imagine a U Boat being armed with a revolving cannon?
Thanks in advance,
navyman.