Alin, I guess what I would like is more specific information about this bead / cylinder seal. You can help people like me, who are not familiar with this type of bead, to learn something.

Some specific questions:
Where did you purchase or acquire it?
What were you told about it?
Where is it supposed to be from?
How old do you think it is?
How big is it?
How big is the hole?

Thanks!