Minimum item levels for unique drops

So we know that Orb of Chance can make a unique from the base item of any ilevel - but do we have a list of map level requirements for unique drops? I've googled around and can't find one. Maybe we should start one if there isn't.

basically, if an item has a level requirement, a monster of atleast that level must drop it. For exanple, Mjnoler can drop in zones starting at lv 58 from a rare or unique mob that drops +2 level items, 59 for magic and up mobs, and lv60 zone for everything.

Did a bad job explaining, but hope I helped

Also, there are a few specific uniques that can only drop in high level maps such as void batteries, and thunderfists.

Yes, exactly. Do you have a list of which ones require what ilevel items? That's what I'm looking for :(

i thought they did away with gated uniques and just stuck with ilvl + rarity tiers? (aside form atrizi stuff ofc)

http://pathofexile.gamepedia.com/Map

Look near the bottom. They are limited to maps only cos to reach those item levels, only maps can reach them.

As far as I know chancing is not related on itemlevel at all, you could only have issues with specific drop items (like you cant chance atziri loot or taming) and with league specific items which you need to run a zana league modded map to be able to chance.

For the ilvl limited drops any map or event that can attain the required minimum ilvl of drop should be able to drop the unique, for example some boss or chest which drops +2 or +3 higher lvl items than the current map level.