The KAOS Assassin places a silencer on his revolver to shoot Max. Only one commercial revolver, the Swedish-Russian Nagant, can be silenced. The gun is NOT a Nagant.
Revolvers can not be silenced with a silencer.
The German baron is reading the "Kölnische Zeitung". This newspaper was discontinued in 1945. (The brittle and yellowed condition of the copy he is reading shows its age, too).