yes, some versions were used... light green to umbra brown...
the blue canvas frogs exists with serveral blue thread.
interessting. can you post a better pic, so the colour can be seen clarly. i can not say if its greenblue or darkblue
here is a late DAK frog...out of my collcetion.
these frogs not only been used in afrika... on the hole southern front (S�dfront), south russia, itali, balkan etc. canvas was used. in late war canvas frogs and belts were given to the troops. the the produktion mabey runns longer.
