This is a RARE GAK surplus knife.  This is a GAK01 pattern knife.  It has "ROSTEFREI" on the tang, and a "Robi Klaas Kissing Crane" etched on the blade.  I think this is a surplus knife that was made after the military contract and sold to the civilian market.  It is German made and in new condition.  The blade is frosty.  There are marks from age and storage, but overall VERY nice condition.  Of course everything works with good snap open and close.