Rusty Key
The rusty key to Pirate Ship.

Etc. Items
Item is Soulbound
Buy Price from NPC: 5,500 GoldGold

How to Obtain:
Purchased from Reader-HalDamas once you have ScrollOld Cloth Map.

Access to BroomPirate Ship.

Related Items:
Skeleton-KeyBone Key
Skeleton-KeyCaptain's Cabin Key
Skeleton-KeyHallway Key
Skeleton-KeyStorage Key
Skeleton-KeyWarehouse Key

Used in Pirate Ship Quest.
In order to purchase it, scroll through chat options and ask Reader-HalDamas about the ship, this will open the shop interface and the key will become available.