I picked this Voos marked Luft2 at the SOS. Not strictly a TM variation, it is interesting in that the maker mark, the no oval snake along with the firm name running along the blade has been applied upside down.

Here is the dagger and a shot of the two orientations of this maker mark.

Obverse.JPG (41.8 KB, 238 downloads)
Reverse.JPG (39.75 KB, 240 downloads)
Obverse Hilt.JPG (40.3 KB, 239 downloads)
Reverse Hilt.JPG (39.12 KB, 239 downloads)
TM Snake by Crossguard.JPG (38.84 KB, 242 downloads)
Two No Ovals.JPG (40.82 KB, 241 downloads)

Always looking for Eickhorns and etched bayonets.