Persian carpet does not lose its value. It becomes antiques. Thus, buying a Persian carpet you acquire the thing which may become a family relic. 250 year old antiquarian Persian carpet. Kurdistan carpet of 190cm*112cm size which was weaved in the city of Sene. It was made of sheep wool on the silk wrap. Number of knots per 1cm2 is 121. Total number of carpet knots is 25 289 000