I bought this cool wool runner rug at a consignment shop. It is possibly a blended wool with some brown cotton type thread woven in it that extends thoughout and the remains of the thread is the knotted fringes at the end.
The design is typical of the southwestern motif. It's not old at all and it's made in Mexico. They make these kinds of narrow rugs with that kind of border. It's not made in India and it's not a dhurrie. These Mexican rugs are hand loomed and usually a cottage industry rug. Usually women make them at home. It's less than 30 years old.