Stamm.Kp.Pi.Ers.Btl.311 Erkennungsmarke (Lötzen)

The dog tag or 'Erkennungsmarke' shows normal signs of wear. The bataillon was formed in Juni 1940 in. It fell under Division 160 and in June 1940 in Lötzen under Division 151. It trained and delivered soldiers for 8 different Pionier Bataillons and the Landwehr Pionier Bataillon 161. In September 1942 the bataillon was devided into and Ersatz and an Ausbildungs bataillon which became one unit in March 1943. In Januari 1945 the bataillon saw combat in Lotzen and was destroyed. The unit lost 160 soldiers. Remnants of the unit where absorbed by Pionier Ersatz Bataillon 30.
The 'O' stands for the soldier's bloodtype.
A Stammkompanie was a unit that trained the soldiers. Often the soldiers of this kompanie were soldiers who had frontline experience and/or where no longer fully usable on the front due to injuries. Of course this changed later in the war and they also where put into action as there was a shortage of (front)soldiers.