I dont like the solder at the back and what looks like newish rust on the prong sleeve, also looks like acid had been used on the to age it, but why make a buckle that not worth that much anyway, strange buckle to be honest!
yes this is a fake ! The box is typical newtime !
I'm searching for
special SA/NSKK/NSFK with maker marks
Link to my collection : http://www.warrelics.eu/forum/album.php?albumid=1175