Gear drop info?

[Jacaen]

There was an addon - or maybe part of an addon - that showed where a gear piece drops in the tooltip. For example, if I inspect someone to look at their gear, I want to know where they got their gear from (or heck, where I got my gear from when people ask, and I don't remember). I could just look in the tooltip for the gear piece, and it would say what boss, mob, vendor or quest drops or gives the item.

So, anyone know what it is?

[Taryble]

If you have AtlasLoot, the addon "AtlasLootReversed" would do that. I don't know if it's been updated for 4.x, though.

[Dridzt]

Mendeleev and/or Engravings would do that.