Original German WWII 5cm Mortar Round Leichter Granatwerfer 36 Transportation Box Case With Inert Round Russian Maxim 1910 which is why the edges

which is why the edges show more age toning than the interior: they were in contact with the framing material

This is probably not the original unit designation

The Liner leather is dry

and has very ornate brass Dragon menuki (grip decorations)

While these carbines were in production

Original German WWII 5cm Mortar Round Leichter Granatwerfer 36 Transportation Box Case With Inert Round Russian Maxim 1910 which is why the edgesOriginal Item: Only One Available. Fantastic totally genuine 5cm mortar round steel transportation case for the 5 cm Leichter Granatwerfer 36 (lighter grenade launcher). The rounds it carried are High Explosive anti personnel bombs with a finned tail, of 8 blades, that would carry the cartridge. The bodies are manufactured from 4mm thick mild steel, with a screw threaded fuze hole that would accept a quick acting aluminum or Bakelite Wgr. Z. 38 nose