@Raxc thanks for your input. I don't think I'd fall for it again, although I'm still kinda shocked that this is a major auction house. It needs to be brought to the attention of numisbids and sixbid. I'm still waiting on the refund, but it's supposedly going to happen this week.
Can you PM me the auction house so I can steer clear? I have noticed plenty of fake ancient coins on eBay, and many of the fakes I spot are often listed from Serbia. What's scary about it is they're often faking LRB and only asking a few dollars for them. I'm sure there are good numismatists from that fine country, but a few bad apples are ruining it for the rest of them. I wouldn't buy anything from Serbia at this point.
I would steer clear of late Roman AE4s of any rare ruler. Styles are crude, legends are either absent or barely there, devices are worn, flans are tiny - so there isn't much info to go on to determine authenticity.
I would advise everyone to go to acsearch.info, search for things like Galla Placidia ae, Anthemius ae, Zenonis ae, Avitus ae or Basiliscus ae
An article about similar forgeries, this time of Crusader coinage here: http://www.academia.edu/37247782/Contemporary_Counterfeit_Coins_of_the_Crusader_States Some examples to compare with what has been shown before.
Things are getting worse, here is something probably from the same manufacture but artificially aged and better made to mimick an actual carolingian denier. This one is better than the ones before and thus more dangerous.