If it wasn’t yet known, I discovered what L.G.M (Magdeburg) stands for.

You’ll find it on leather German equipment: belts, ammo pouches, etc. I have this leather belt made by them and came across their name by accident.

It is LOTHAR GERECKE MAGDEBURG.

Another one to add to the inventory, if it wasn’t already there… I searched and searched and didn’t find.

I hope this helps others!

Cheers