Keys

Dropped by a soldier wearing a white T-shirt.

You can use it to open the safe in which you will find the "A Lost Soul Trembles" personal letter.

One of the soldiers on the second floor of the building has it.

Nazi Officer has it.

Nazi officer has it.

One of the soldiers has it.

Nazi officer has it.

On the table located in the second safehouse. You will reach here using the Second Safehouse Entrance.

Drops from the scientist.

Drops from the scientist.

Radio operator has it.

Near the stairs, on the lower floor of the building.

Among the junk located outside, next to the entrance to the apartment.

On a chair standing next to the bed on the upper floor. You can use it to open the safe in which you will find the "Use the Library" classified document.

In the reception of the hotel located on the ground floor. The other key is held by a Nazi agent guarding one of the hotel's upper floors.

One of the soldiers has it.

Note: No longer in the game(?)

Nazi office has it.

Nazi engineer has it.

Nazi officer has it.

Nazi agent has it. Kill him and search his body. You can use it to open the safe in which you will find the Vertigo's Documents.

Nazi soldier has it.

One of the soldiers has it.

A soldier on the footbridge has it.

A scientist has it.

An officer has it.

An officer has it.

Emich von Braun has it.

On the table in the room on the upper floor of the building. It unlocks the safe with the "New Tech" document.

Unlocks the safe located on the highest level of the bunker.

You will get it when you search the corpse lying on the ground. It unlocks the door to the Radio Room.

It unlocks the safe with the document "A Monster in the Marshes".