Better photos? Other than blurry photos what makes you think it's a fake? I bought a small lot through a dealer and this was in the lot. I posted a few other ancients but I don't trust the sellers attributes.
Here is a page of genuine examples of your coin: http://www.wildwinds.com/coins/sear5/s7551.t.html - Your coin has no border around the legend - The lettering is off. Severan era denarii have heavy serifs on every letter of the legend - The portrait style is off; it's too realistic compared to genuine portraits of this emperor, and doesn't look like him very much. - The surface of the coin is far too smooth and looks like freshly struck silver, not silver that has spent 1800 years underground. Genuine uncirculated examples clean better than this coin, and have a frosty cameo appearance. Hope that helps! We've all been burned by fakes, so don't feel bad!
No single point made above guarantee this is a fake but four together leave no doubt. Below are two different coins of the general type for comparison. Both of these are from an Eastern mint which adds a bit to their strange look to eyes accustomed to the Rome mint which I lack. The links below show Rome mint coins. In each case there are differences and similarities but all these are genuine and ancient. Ancient coins are not all exact duplicates in the same way your signature varies from example to example. They are different but share characteristics. https://www.cngcoins.com/Coin.aspx?CoinID=17143 https://www.cngcoins.com/Coin.aspx?CoinID=46829
Thank you. I bought a small group of coins through a dealer and had no contact with the seller. This was one of those coins so no harm done at $5.00 a coin. Now I have my first ancient fake!