Cartridge made into a knife handle

Found this knife in a flea market in Europe. The handle is made from a cartridge… I was told it was from Afghanistan. The head stamp has a number 3 on the top, number 88 on the bottom and a small 5 point star on the right and left… anybody have an idea what kind of amo that would be? I thought I uploaded 2 photos but I don’t see them.

This headstamp?

Thank you…