German railway work battalion Soldiers(2 NCOs and 1 Officer) in a forest in Metz. "Dear Wilhelm! The photographer delivered the card to write to you only today. I am still well and hope the same of you. I recently visited Sarrbrückenthe the other day, pity we couldn't meet up. But it still was a nice trip. Auf Wiedersehen Your faithful friend Bernhard [Knörr]" Sent to "Herrn Unteroffizier Wilhelm Müller Saarbrücken 3 Richard Wagnerstrasse Militär Bau amt" Absender: "Utffz Knörr Festungseisenbahn bau Komp. No. 12 Metz" Bernhard is likely the man on the right.
1916, world war one