On this page of our treasure guide to Uncharted 3 Drake's Deception you can find valuable information about all collectibles available in chapter 15. There is only one treasure in this chapter - Silver Rococo Napkin Ring. Search for the treasure in the bathroom of one of the cabins.
Silver Rococo Napkin Ring
As you climb through the corridor full of cabins , you will reach one of the rooms. Climb on the couch and jump on the door to get to the other room. From there jump into the bathroom. You will find a treasure in the bathroom .