thx for the respond. it is good to know the original one has made in what period. sometimes in my country police capture antique dealers and the stuffs directly after court goes to the museum without any expert review. a. later they find that stuffs has been new, fake, reproducción.this is happenm many times with fake coins.
in recent years beads market in my country has many Chinese customers who pay madly. so unfortunately the rate of digging every day goes higher.
beside many reproduction comes from Afghanistan and. its about 5 years that i am aside of bead business, but people sometimes come to me to help identifying beads.

best wishes

Ali