I used to get brass from a local police dept brought to me by the bucket fills. I've handled hundreds of thousands of cases. I've never seen one of those til now
Here is a link to the headstamp guide that I use. I cannot see it in the picture well enough to search it myself, but maybe you can find it. Good luck in the search.
https://afte.org/resources/headstamp-guide
maybe this helps?
Looks less like allah akbar.maybe this helps?