I think it's a decent copy and has just a few stylistic flaws around the eye on the obverse and the "D" on the reverse looks off. I think I see a few casting signs, but I'm not 100% sure. On the other hand, I'm assuming it's a copy based on the price. Maybe I've got a real denarius with retooled lettering. The eye looks slightly off, but I've seen a few authentic ones online that are very similar. Can you guys take a look and educate me?