Sealed Letter

Sealed Letter refers to multiple pages:
*Sealed Letter (Tiragarde Sound), the quest item for A Letter to the League
*Sealed Letter (rogue), the quest item for Call of The Uncrowned
*Sealed Letter (Dustwallow Marsh), the quest item for The Apothecary's Letter and Signs of Treachery?
*Sealed Letter to Ag'tor, the quest item for Betrayed
*Sealed Letter to Archmage Malin, the quest item for Malin's Request
*Seahorn's Sealed Letter, the quest item for Sunken Treasure (5)
*Letter Sealed by Sylvanas, the quest item for Meeting the Orcs