side is the Lion and Sun as coat of arms, value, and coinage date. Article 6- Coinage right The coinage right of all gold coins of Iran is limited to the government mint, minting of gold coins is open to the general public and the coinage right per kilogram of net gold should not exceed ten rials. Other articles were dealt with defective coins, counterfeit, coins of gold or bullion (as backbone of money), the Rial's prevalence date, the gold import license, the purchase of gold by the government, and the date of law enforcement. Perhaps this was the first time in the history of coinage in Iran, in which uncertainty was considered in the law. With the change in the weight and size of "one Pahlavi" gold coin, this coin approximately was become equivalent to "one Sovereign" in weight and diameter, which started by George III in 1817. Amendment of the law The changes, that legislated on 13 March 1932, of the mentioned law were as follows: Article 1- Amendments to the previous resolution are as follows a-Gold coin of 100 Rials called Pahlavi. Fifty Rials Gold Coin called Half Pahlavi b- One rial equivalent to 0.033322882 grams of pure gold. Article 2- From 21 March 1932, the coins of one and half Pahlavi and silver coins of half, one, two and five rials, and nickel coins of five, ten and twenty-five dinars, and banknotes of the American banknote issued in New York, are valid. Article 3- Since the enactment of the law, the coinage of previous gold coins and silver and nickel coins with Shahi and Qiran currencies have been banned. As the amendment demonstrates, especially in the case of the depreciation of the Rial against gold, the reduction of silver coins purity from 0.900 to 0.828, The use of the term "Restoration of the normal economic situation" in Article 10 of the Amendment, create restrictions on the issuance of gold and the import of silver and to unify it with the permission of the Cabinet in Article 12 of the Amendment, could imply the financial crisis in Iran at that time. The reason for this economic crisis is the fall in the value of silver in the late 1920s and early 1930s. Because the Iranian currency at that time was based on silver. Rules of gold coinage in the time of Mohammad Reza Shah The law of