I could go completely wrong, but for me this looks different worked....the coins are french, silver, and the dates are not to see...maybe I will find out later, from which time they will come, but I wouldn´t think, they are as old as the other „islamic“ coins...

second picture again a larger silver/enamel bead...the enamel looks pretty new to me...

third picture shows various silver/enamel beads and my guess would be, that the down right beads are the newest