... following:Persian Silk Rug (Grade A), 300-400 lines, usd72/sq.ft.Persian Silk Rug (Grade B), 230-260 lines, usd42 ... /sq.ft.Persian Silk Rug (Grade C), 200-230 lines, usd22. ... Mixed Rug, 200 lines, usd37.5/sq.ft.Wool aubusson Rug, usd19/sq.ft.Wool aubusson tapestry, usd34.5/sq.ft. silk rug