TEHRAN -- The latest free market (unofficial) rates of major foreign currencies and price of gold announced onTuesday are as follows: Currency Rate Change U.S. dollar Rls.8,190 unchanged German mark Rls.3,800 unchanged British pound Rls.12,100 unchanged ******* U.S. dollar (bought from exporters) Rls.8,159unchanged Euro (bought from exporters)Rls.7,386 -10 rials ***** Gold Coin Price Change Full Bahar-e AzadiRls.565,000 unchanged Half " " Rls.368,000 -2,000 rials Quarter " " Rls.218,000 unchanged ****** Gold Price Change (0.750) 1 gram Rls.56,100 +200 rials