Hi there they were only made in aluminium, never in steel, you are right my friend, the buckle is a fake
I agree with Ben. A fake and a bad copy as well but the first of this kind I have ever seen.
Sorry - thumbs down on that one. Never made in steel! (the cast alum. repros are pretty good too! Need to be careful!)
A have seen boxes of these and other types sold as repos for around $8 each or 3 for $20.
I'm searching for
special SA/NSKK/NSFK with maker marks
Link to my collection : http://www.warrelics.eu/forum/album.php?albumid=1175
I'll add a picture of my example as well while we're at it.