to display abrash and conspicuous mistakes in detail. On simple vertical looms, the correct tension of the warps is difficult to maintain during the entire weaving process. So, village rugs tend to vary in width from end to end, have irregular sides, and may not lay entirely flat. In contrast to manufactory rugs, there is considerable variety in treating the selvedges and fringes. Village rugs are less likely to present depressed warps, as compared to manufactory rugs. They tend to make less use of flat woven kilim ends to finish off the ends of the rug, as compared to tribal rugs. The variation in treatment of fringes and ends, and the way the selvedges are treated, provide clues as to place of origin. Northwestern Iran Tabriz is the market center for the Iranian Northwest. Carpets woven in this region mainly use the symmetric knot. Heriz is a local center of production for mainly room-size carpets. Warps and weft are of cotton, the weaving is rather coarse, with high-quality wool. Prominent central medaillons are frequently seen with rectilinear outlines highlighted in white. The ornaments of the field are in bold, rectilinear style, sometimes in an allover design. Higher quality Heriz carpets are known as Serapi. The village of Sarab produces runners and galleries with broad main borders either of camel hair or wool dyed in the colour of camel hair. Large, interconnected medaillons fill the field. Mostly rectilinear, geometric and floral patterns are dyed in pink red and blue. Bakshaish carpets with a shield-shaped large medaillon, less elaborate rectilinear patterns in salmon red and blue are labeled after the village of Bakhshayesh. Karadja produces runners with specific square and octagonal medaillons in succession. Western Iran Major production centers in the West are Hamadan, Saruk with its neighbouring town of Arak, Minudasht also known under the trade name Lilihan and Serabend, Maslaghan, Malayer and Feraghan. Carpets from Maslaghan are usually small (120 × 180 cm), the warps are made of cotton, the wefts of wool or cotton. The large medaillon shows a so-called "lobed Göl", the colours of which are in sharp contrast to the field, with small borders. Malayer, Sarouk and Feraghan are located closely to each other. They use cotton for the foundation. Malayer carpets are distinguished by their single-weft and the use of the symmetrical knot. Allover and medaillon patterns are common, the boteh motif is frequently used. The