As the German army behaved hesitantly in the development of an effective head protection, some units developed provisional helmets in 1915. Stationed in the rocky area of the Vosges the Army Detachment "Gaede" recorded significantly more head injuries caused by stone and shell splinters than did troops in other sectors of the front. The artillery workshop of the Army Detachment developed a helmet that consisted of a leather cap with a steel plate (6 mm thickness). The plate protected not only the forehead but also the eyes and nose.