If it’s from the looted archeological site of Isin, as you state...
... I think it could be one of these.
Isin – over two hundred looters' pits are organized around the former site of the Temple of Gula; countless artifacts have been removed from the site here, including innumerable cuneiform tablets, cylinder seals, and votive tablets, some of which could sell for as much as $30,000.
15,000 other antiquities—in the chaotic aftermath of the U.S. invasion of Iraq.... In most cases, their whereabouts are unknown.
Experts have noticed an uptick in the availability of ancient Mesopotamian artifacts at online retailers since the 2003 invasion of Iraq. Now, anyone with broadband and a bit of spare cash can buy one of these artifacts.
The UNESCO convention requires proper certification for objects excavated and exported after 1970, [yet] auction websites generally don’t require sellers to make this certification available upfront to prospective buyers.
On the website Live Auctioneers, you can find a stone bull for $50, a clay cylinder seal for $150, a terracotta fragment bearing a god on a chariot for $225, and a large terracotta female idol for $400. On another auction site, Trocadero, a lion-shaped stone amulet is on offer for $250. ... it’s extremely hard to know... whether the object has been legally sourced [by having the UNESCO certificate prior to a person purchasing, meaning buyers are only told/find out after the purchase if the certificate came with it - which makes it legal, or if there is no certificate, which makes it illegal, and a likely looted object in their possession].
Most of the Iraqi antiquities sold online are small. “These Iraqi antiquities are very cheap because people want to get rid of them,” he said. “Maybe because they don’t have documentation for them.”
A clandestine operation involving federal prosecutors in New York [had been trying to retrieve illegally possessed/looted items]. Immigration and Customs Enforcement returned more than 1,200 items between 2008 and 2015 alone
It’s not known how many Americans brought home artifacts as souvenirs or war trophies, but one expert suggested to the Tribune that the known cases—a defense contractor who brought back gold-plated items from Saddam’s palaces; a U.S. employee who shipped home an Iraq government seal; a Marine who bought eight ancient looted stone seals off the street—are just “the tiniest tip of the iceberg.
”The amount of looting was incalculable. “We don’t know how many artifacts have been looted from there—that’s the hidden story,” he told me, before casually adding, “I myself was able to restore almost 30,000 stolen artifacts from the hands of the looters and smugglers, between 2003 and 2006.”
OP, have you got a photo of the UNESCO certificate showing this wasn’t looted and that it’s not illegally in your possession?