Guild Seal is a trophy in Fable III given to the Hero by completing the quest Leaving The Castle. It can be viewed in the Sanctuary with the other trophies, or can be placed in a property to increase its value.
Trivia
- Strangely, the Guild Seal hangs on the wall in the Trophy Room in the Sanctuary, yet the Hero of Brightwall has it upon his/her person, as Jasper communicates with them via the Seal, and the Seal would need a recipient seal to allow communication.