Heer Afrika Korps Shoulder Board Mountain Troops or Schutzen (machine gun) Regiments.
This is a very early Afrika Korps slip on shoulder board made of wool with green wool piping. These wool shoulder boards are for wear on the tropical greatcoat. Green is the hardest to find piping, for Afrika Korps boards, and it seems to match mountain troops, but could also be for schutzen regiments that manned machine guns. if this is schutzen regiment, this is the type of strap that a soldier in Schutzen Regiment 200 (MG Abt 2 & MG Abt 8) would have been wearing on their tropical greatcoats when they arrived in Afrika in early 1941,