The Letter from a Russian Officer is a historical item which can be found by Emile at Chemin des Dames in Chapter 4.
Location[]
Inside the bunker after pushing the cart full of shells all the way right, this item will be on the ground.
Description[]
"Craonne, April 8th 1917
My dear wife Elena Konstantinovna,
I am alive and well by the grace of God.We're still fighting but this is nothing like I imagined. The mud is everywhere and the battles are draining.My men are exhausted and I'm having trouble to get them to fight. They have heard about what's happening and they want to go back home. How are you? Are you safe?
Your loving husband,
Nikolay Alekseevich"