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A worker adjusts a loom at a carpet workshop in Qom, 120 km (75 miles) south of Tehran November 12, 2011. Persian carpet weaving is a historical part of Iranian culture, dating back to as far as approximately 2,000 years ago. Persian carpets can be mostly divided into three size groups: large (3x4 metres), medium (2x3 metres) and small (1x1.5 metres), which is called Ghaliche. For a larger 24-square-metre silk carpet, each 70 cm section takes about a month to make. The price for each carpet is set by officials from Iran?s national carpet company after examining each completed carpet. The carpet workshops are mostly family-run businesses. REUTERS/Morteza Nikoubazl (IRAN - Tags: SOCIETY BUSINESS TPX IMAGES OF THE DAY)