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A weaver works on a carpet

A weaver works on a carpet at a carpet workshop in Isfahan, Iran, on November 14, 2011. Persian carpets can be mostly divided into three size groups: large (3x4 meters), medium (2x3 meters) and small (1x1.5 meters), which is called Ghaliche. For a larger 24-square-meter silk carpet, every 70 cm... Morteza Nikoubazl/Reuters