I recently got this from a friend and i have no idea what it is or if its worth anything if someone can help me please. thank you very much
It's a Julian II FEL TEMP REPARATIO horseman. Your picture is too blurry for me to be sure of the mint.
It's still too difficult to make out the mint mark. In general, it helps to take the coin out of the holder before photographing it. Your coin has been knocked around for over 1,600 years, so you won't hurt it by handling it. Do you see the soldier who is getting speared and falling over his horse? There should be a line across the bottom of the coin right under the horse. The space under the line is called the exergue. That's where the mint mark would be. Can you make out any letters in the exergue? If so, that might allow us to tell you what city the coin was minted in. BTW, I can't tell for sure, but I assume that Victor Clark is correct in identifying the coin as one of Julian II ("the Apostate"). That would mean that your coin was minted between 355-361 A.D. During this time, Julian II was the Caesar, or the heir to the throne. In 361, Constantius II died, and Julian became the Augustus (Emperor).
It looks like the last 2 letters of the mintmark are TS; which would have to be Thessalonica...like SMTS. This is not in RIC for Julian II, though examples are known. Of course, without being able to make out the complete mintmark, this is conjecture.
Poor thing's been cleaned to the point I think I can make out Julian's facial bones :-( Keep it in your wallet or on a window sill for a few weeks and it'll be back to its proper look.
If you put a squirt gun up against my head and told me to guess, I'd say Constantinople, probably RIC 138. There's something weird in the left field above the fallen horseman. It could be the remains of the [dot] M [dot] that is usually there in this series.