Technische Nothilfe (TeNo or TENO) dagger by Eickhorn

Technische Nothilfe (TeNo or TENO), literally translated as Technical Help in Difficulty,
 was a German organization with the stated purpose of protecting and maintaining facilities 
vital and strategic. It was founded by members of the TA (Technische Abteilung - 
i.e. technical unit) of the paramilitary group Freikorps GKSD - "Garde-Kavallerie-Schützen-Division".
The dagger shows obvious signs of aging, the guard has some corrosion points and the blade
It is not in perfect condition, the paint on the scabbard is at least 90% 
The dagger in question is however very rare.