My college room mates Grandfather was Max Susat of Zenftenberg (South of Berlin) who was an NCO in Artillerie von Linger until 1916 - as a machinist he was sent back to Germany to supervise POW labor just before his battery was over-run on the Western front. The Grandson has Susat's Soldbuch and several photos from the war as well as letters. I've asked him to post the photos on facebook - and will get permission to post them here
Kirk D. Lyons