they were minted at very low mintage, so that these coins are very rare. Half Pahlavi legend type has not minted in 1945 (۱۳۲۴). Mohammad Reza Shah's Pahlavi coins The coinage dates of these coins are 1945 (۱۳۲۴) to 1979 (۱۳۵۸) and are seen in "quarter" to "ten Pahlavi" sizes. Designation of them is the same as the end of Pahlavi rule except in commemorative coins. Half Pahlavi and One Pahlavi gold coins are in two types: "high relief" and "ordinary" Pahlavi coins. High Relief Pahlavi Coins These coins which minted from 1324 to 1330 have two sizes: "half" and "one" Pahlavi. The legends and images of these coins on two sides are not very fine and detailed which sometimes they are confused with fake coins. High relief half Pahlavi of 1951 (۱۳۳۰) is scarce. Pahlavi gold coins (portrait) These coins are in "quarter", "half", "one", "two and half", "five" and "ten" Pahlavi sizes. Quarter Pahlavi This coin, which was first mass-produced in 1953, was produced in two diameters: 14 and 16 mm. Quarter coins with a size of 14 mm have been minted from 1953 to 1957, and 16mm quarter coins dating from 1337 to 1358. Since 1974, with the addition of the word "Ariamehr"- "آریامهر" to the title of Shah, the term "Mohammad Reza Shah Pahlavi Ariamehr Shahanshah Iran"- "محمّدرضا شاه پهلوی آریامهر شاهنشاه ایران" was added to the coin. In 1977 and 1978, with the change of the official calendar of Iran from Hijri calendar to imperial calendar, the dates of these coins are ۲۵۳۶ and ۲۵۳۷, respectively. The coin of the Quarter Pahlavi commemorating the coronation celebration in 1967 was minted by the year ۱۳۴۶. On the obverse of this coin, four digits of date as 26th of October 1967 (۴۶ آبان) and the words "to the commemoration of the coronation"- in Persian: "بمیمنت جشن تاجگذاری" on the reverse. It has been used the dies of Quarter Pahlavi of previous years for minting; thus this coin has a low coinage quality. Thus, four editions of quarter Pahlavi have been minted during the reign of Mohammad Reza Shah: the 14mm coin, the ordinary, the Aryamehr and the commemorative quarter Pahlavi. Half Pahlavi Gold Coin The flat (vs. high relief) type of this coin was first introduced to the market in 1951. This coin also has a variety of ordinary and Aryamehr, the first type is from 1951