Perhaps a little more than "not often seen".
Very rare and very unusual!
Congratulations on a super addition to your collection.
seldom seen mark .
Nice addition to your collection !
I'm searching for
special SA/NSKK/NSFK with maker marks
Link to my collection : http://www.warrelics.eu/forum/album.php?albumid=1175
Nice buckle Ivan and very hard to come by
Thanks for your comments!