Pro tip: don't spend $120 on a "guaranteed" Roman coin from an eBay seller in Ohio
I bought a Constantine the Great follis for $120 from a seller with 4,000 feedback, and when it showed up it was a cast copy with a seam on the edge you could see under a 10x loupe. Took it to a shop in Baltimore and the guy laughed, said the real ones go for $15 to $30 at coin shows and this fake was worth about two bucks in brass. Lesson is I should have bought a $6 uncleaned lot and done the work myself instead of trusting a fancy listing photo. Anyone else get burned on ancient coins before you learned what to look for?
Did you ever notice how the fake stuff always looks better in the listing pics than the real thing does in your hand? I got into ancients about five years back and my first buy was a "silver" denarius that turned out to be a fourree, basically a bronze core with a thin silver skin that was flaking off around the edges. Cost me $80 and the seller swore it was a metal detecting find from a field in Bulgaria. Now I just stick to junk bins at shows where I can hold the coin and squint at it myself before handing over cash.