RECAP YES an item can be equipped result of a quest would pass through a TSA checkpoint from the Darkened Sea or later NO in original EQ a weapon (could be misleading) in the Buried Sea or before looted from an NPC an augment quest for a certain class/classes a body part (could be misleading) goes in secondary slot provide a focus effect (technically no, but could be misleading. Does not provide a "Focus:" effect, but may provide another mod) found in a reward chest ammo slot item quest from HoT or before charm slot
Hmmm maybe? But I will give a hint. Hint: the quest that produces the item is not available all the time
Then, we need to pin down a season/holiday? If so this should become easier as these quests have not had much accretion.
That is why I asked "during." I had a feeling you were angling for something special. So, is the quest involved a 19th anniversary quest?