Ok so i looked at the screenshot more closely now that im home, so this item wasnt farmed by this guy, it was bought off the AH. so there is 2 scenarios here.
1. Its possible during the brief bit of time where epics scaled for everyone that someone did a bit of powerleveling on a character while monk farming and got the item to drop and only recently decided to sell it on AH.
2. its the same situation with someone trying to power level a character in a higher zone and looted the item in a unknown zone recently and put it on AH, seems we can't get any information on who the item dropped for / who looted it.
So either it was before the hotfix that changed to only epics scaled to the 30s. Possible the hotfix is broken and items can be looted. Or i guess a small window of time where it could be looted but now can't. Thats definatly a one of a kind item right now. Lowest scaled epic i have seen so far. Also to add since its the skullflame shield it helps determine where it was dropped cause we know the current zones that are possible to farm and the methods used to farm it.