This rug is floppy in spite of its ribbed back. A similar runner from the Joslyn Art museum on page 28 is attributed to Persian Kurdistan. The twist of the wefts between warps can be clearly seen at the top and right sides of the two pictures. Marla Mallet shows a similar weft float border in Woven Structure - plate 14.22 from a Jaf Kurd knotted pile bag face. In the photo I have seen of a complete similar bag face, this border flanks bands of triangular motifs in reciprocal brocading at the top, end, and middle of the red-brown colored plain weave back stripped with blue bands.
Browns are slightly oxidized and greens a mixture of blue and yellow.
I have seen few similar examples. Two of them have the same checkerboard top panel in the same colors. Mike's attribution is second hand, because he has never been there, but he has a so-called Jaf pile bagface similar to mine in wool type and structure. Mike adds that a hallmark of Kurdish khorjin may be that they can be quite large - ca. Most pieces don't have offset knotting and designs and coloration can mimic weavings of other tribal groups.