In my first message I did write 1013L, only the 'L' was in a different font, sorry for the mix up
So it is a military one? How come it has so few proof marks? Any idea of the age? The eagle looks more like an octopus to me
.
What would be the right magazine bottom for this? I have one unmarked mag which looks very new, it has a wooden bottom with the concentric circles on the lugs.