The "Le Singe" Tin Opener is a historical item which can be found by Emile at Chemin des Dames in Chapter 4.
Location[]
After breaking the barrier and digging down through the dirt to avoid more machine gun fire, dig down and left under the shells to find this hidden item.
Description[]
"Tin opener made by "Le Singe" manufacturers, standard issue French army equipment. The tin-opener was still standard issue equipment for French troops at the start of the Second World War."