anceint

These are some ancient things I found These around my farm I live in iran west azerbijan province. I think these things are before the islam

could someone please help me identify these pieces?

I was detecting in an old river that was 'drained' awhile ago in the middle of the forest, there is rumors of medieval places nearby. And I got a strong 50's signal, dug it up and got a quite old looking copper ring: (The scale is in Centimeters) I just wonder how old this ring could be, I...