Forgotten Lockbox
From Wowpedia
The Forgotten Lockbox can be found on the second floor of the Tavern in the Mists at The Veiled Stair, above the Valley of the Four Winds. Looting it awards ~20,000 XP and around nine to ten gold.
See also
Lost treasures hidden throughout Pandaria
Patches and hotfixes
Patch 5.0.4 (2012-08-28): Added.
