I received a new shipment of Persian rugs from Tehran while ago. My supplier has sent me a Mercedes Benz logo made on a Persian rug along with other rugs and kilims. The size of this little rug 21" x 16 and the knot per square inch, KPSI is around 300. The pile is wool on cotton foundation (warp). This hand knotted Persian carpet was made in the famous city of Kashan.