On this page of our treasure guide to Uncharted 3 Drake's Deception you can find valuable information about all collectibles available in chapter 9. In this chapter you can find just 3 treasures - King Bohemond III Coin, Antique Cuff Bracelet, Crusader Fleur-de-lis. Bracelet is the hardest one to get, and you have to shoot it down in order to pick it up.
King Bohemond III Coin
After the battle, you'll be in a room with a stone globe . On its left side, between the two torches on the wall, there is a treasure .
Antique Cuff Bracelet
After you get to the first lock with Charlie, you have to open it and wait until the ditch in front of you is filled with water. There is a treasure on the beam by the right wall above the water trench . To get it, jump into the water, swim towards it and then shoot it down and collect it before it sinks.
Just after solving the puzzle with the globe go out by taking the winding staircase. In the tomb by the left wall near the destroyed coffin you will find a treasure .