From: Jim Allen
Here is a close-up of a Kashan Rug that is about the same size as the royal Sarouk of the recent poster. I have a copy of the original estate inventory where this rug was listed as having been bought in 1926 for 650.00 dollars, a huge sum for the day. This rug is knotted at 325 KPSI and has a Manchester wool pile. After 80 years of hard usage it shows no wear. The appellation Royal certainly had an important meaning in the trade in the early 20th century. This rug contains over 17 million knots and was the absolute top of the line Kashan, thus a "Royal" Kashan. A royal Sarouk should have a knot count of 150-180 KPSI and have very fine wool. They tended to be larger than 9X12 feet.
Thanks for sending in this wonderful example. As we can see a Kashan at 325 KPSI has a very different look than a Sarouk. Also thanks for the guidelines on what is a Royal Sarouk.