Mashad rugs are knotted in eastern Iran. The city of Mashhad has long been one of the centres for production of famous Persian carpets. It is also one of the oldest centres of carpet weaving.Mashhad rugs and carpets are mostly curvilinear with a single central medallion, corner floral designs and very busy floral motifs in the background.Dark red, blue and khaki are the main colours in Mashhad carpets. Weavers in Mashad use Persian knots. You should check the back of the carpet because the quality of the rug depends upon the number of knots, which can vary.At Heirloom Oriental Rug Cleaning, we gently clean your treasured heirloom rugs with professional attention and care. Our thorough rug cleaning process can handle the smallest of rugs to the largest size of carpet from around the world.