Yesterday, recycling parcs opened again, thank you, corona. Shortly after, this fella landed on my desk.
Not on the pictures is the inscription on the driving band: 1943 37 mm M63 mod1 E n-1-56. There came a lot of black moisture out of the case between casemouth and projectile. And what happened to the primer? To me, the whole seems original. According to some documentation, Ammunition Inspection Guide of March 1944, this should be a practice round, filled with sand for the one pounder, the M1916. But I read something of a practice, filled with black powder too? So before I put it in quarantine, can someone id the whole thoroughly?