n many handmade Persian rugs and carpets you will discover the deliberate mistake. Followers of Islam believe only Allah makes things perfectly, and therefore to weave a perfect rug or carpet would be an offence to Allah. The original deliberate mistake is usually made in the execution of the pattern of the rug and not in the dying of the wool or silk, and certainly not the quality of the weaving. Genuine deliberate mistakes in oriental rugs and carpets may be very difficult to spot and can be as subtle as a different colour used in a flower petal. In reality with all handmade oriental rugs and carpets, mistakes creep in whether deliberate or not.