Antiquated Key

The  is a key in Dark Souls II.

Availability
Found in a chest in The Lost Bastille near the first bonfire.

Use
Opens a door that will lead to a Pharros lockstone mechanism. To reach the mechanism, after the Servants Quarters bonfire, go through the first door after a long hallway which leads outside. Turn right. Instead of going up a circular stairwell go left and then instead of jumping from one roof to the next, fall down the middle and open the door on the left.