The Superior gem-finding scrimshaw is an item that can be made within a player's port workshop at level 90 Fletching once all four scroll fragments of Gem Finding have been retrieved from the Player-owned portminigame. This item will last 4 hours after which the player will need to make a new one. It will be converted to 100k coins if lost on death, if not degraded. If the scrimshaw is degraded, it will be converted to a smaller amounts of coins. For example, if you have 30 seconds left, it will give you 4000 coins.