u/internet15

They don't appear to be cast fakes, just worn with rough surfaces.

I'm wondering if the reverse is a standing figure, hard to really make out though since it's so worn.

That's a sharp one! Usually the gorgon is pretty worn.

Wow, some incredible pieces there!

Not sure why that would happen, perhaps the photo cut away too much?

And I forgot to mention that the marks on the obverse and reverse match pretty well. The dark mark by the chin, the grainy patina above the palm frond on the reverse. Way too many similarities to just say they're two different coins. I now fully believe they're the same coin.

I'm going to double down, I believe it's the same coin. Either the previous coin was photo edited or it's a copy(?). The 10-12 o'clock area appears different on the old scan, but the beaded border appears odd in that spot. It's no question that the coins are die matched, right? So why does the old scan have squeezed in dots in the 10-12 o'clock area that is not serrated? The spacing appears off, like it was added in.

Call me crazy, but I just don't see how two coins with the same die would have different beaded borders just in that particular area.

Weird, practically 90% of the serrated edges match, but there's about 10% that appears different. I'm wondering if it's just photo editing/cropping that was more prevalent in the past. I believe it's the same coin, there's no way a strike on a serrated edge flan can appear practically alike in two separate coins.

*And by alike, I mean not only by the shapes but also by the placement of the edges on the coin. Same areas on the obverse and reverse. The 10-12 o'clock area appears different, but I'm wondering if it was possibly edited? Crazy I know...

One of the best looking ones I've ever seen, really nice.

Since no one else mentioned, I would try distilled water as an alternative. I fixed multiple coins of mine though that method.

That's interesting to hear, if that's your experience then I'll take it to heart, though I've seen better outcomes that doesn't strip away the coin to bare metal.

Maybe I'll post my results with distilled water one day. I've never had a problem with removing BD and I actually seek coins with them as they're always discounted.

Who has failed in treating their coins from bronze disease? It's not impossible, it's just not a quick fix. And I don't believe the standard treatment (sodium sesquicarbonate) strips away patina, though it does alter the coin somewhat.

I've actually treated all my BD coins via the slow method, with distilled water. Just let it sit in the water for a few days, scrub BD, rinse and repeat. No issues so far.

He's been in the business for years and he's hilarious. I wish he would stop photocopying/scanning the coins for pictures though, it's way too old school and a cheap cell phone would take better pics!

Let me guess, AI said that?

I love that throwing up your hands in terror is a shtick that's been around for thousands of years.

Is there a particular reason why bronzes from Panticapaeum are always so crisp? They're rarely degraded and struck very well. Is the bronze composition different from other types? If you compare these to a typical Roman As, it's night and day.

I think the account is a bot that uses crappy AI. Keeps posting nonsense and spamming links of a coin website.

bad bot!

No prob!

It's pretty identifiable, the pieces seemed to have been shattered off (instead of clipped) and the crystallized metallic grain is visible along the broken edges and is also showing by Alexander's neck.

It's fully crystallized, a good deal but be careful when handling it.

Seems to be fine, this is a tetradrachm from Thasos.

Nice collection, that cistophoric tetradrachm is pretty sharp!

Overseas where? Vcoins has dealers from all over the world, including the U.S.

Not to be pedantic, but Antiochus VII was more of a king than an emperor. This coin looks a little sus, but it isn't clear enough for me to be certain. Cast coins often have a soft look, but I can't tell if this is really cast or just rough. I would avoid Instagram unless it's from a trustworthy dealer that specializes in ancients, and this photo doesn't give me that vibe.

All three of the other coins (Alexander tetradrachms) are clearly cast and therefore not authentic. Get your money back and please avoid any auction houses that aren't knowledgeable of ancients.