Thanks to Esther Saoub and Paul Barford amongst others, there have been many updates to the ‘first material proof‘ that Islamic State is trafficking antiquities.
In a further follow-up, I’ve reassessed the balance of antiquities and forgeries. I believe that most of Abu Sayyaf’s stash comprised ancient coins. [I’m working on a huge update based on the U.S. State Department Cultural Heritage Center’s summary and photo gallery of the ISIL leader’s loot.]