Navy Blue rug. Beautiful Rugs Chicago is offering this finely hand knotted old Persian Isfahan rug at a great bargain to old Persian rug lovers. It is made of fine-quality kork wool and silk pile on a silk foundation. It was made and signed by “Rabiee” one the fine rug producers of Isfahan. Navy-blue, red, brown, blue, gray blue and a touch of green are the major colors used to decorate its pattern. Its beautiful and artistic swirling Eslimi pattern is one of the oldest rug designs which was inspired by the Islamic Mosque motifs. The rug is in excellent condition, and it measures 4.7×7.