While in Durgan's battery, I found three key items, a sigil of Sword, a Sigil of Shield and an Iron Dial.
I pretty much found where they are supposed to go, the Hall of Rememberance in the second level of the Battery. I had no problem with the Sword and Shield but the game does not allow me to insert the dial in the third slot. I imagine that I either have to find a third Sigil, most likely the Sigil of the Helm, or somehow turn the dial into a Sigil. Anyone have any ideas?