Some time ago I got an old FED-1 (s/n 6xxx) in very unusual leather bag with a star on press-button. Could it be the original FED-bag or it is a Leica one?
Some of my Fed and Zorki bag's have a stamp inside the case on the backside. Leica cases are made of fine, quite thin leather, the Russian Cases are a bit rough and sturdy. Except for some early Fed NKVD ones I have. Looking at the stitches, it could be a homemade or homefixed case as well.
I just sometime wonder where all the bags and spools go!