Inside the safe on top of the cabinet in the east side of the room. You must push the trunk through the gap from the west side, navigate round to the east side, climb up and use the Ace Key to unlock the safe.
On top of the locker in the west side of the room. You must push the trunk through the gap from the east side, navigate round to the west side and climb up onto the trunk to acquire it.
On top of the locker in the west side of the room. You must push the trunk through the gap from the east side, navigate round to the west side and climb up onto the trunk to acquire it.