Gold Coin of Mozaffar ad-Din Shah

Gold Coin or medallion.
Qajar Dynasty, Iran.
Date: Late 19th Century.
No information about the owner.
Source: [1].
سکه دوره مظفرالدین شاه قاجار
On the coin, there is uniformed bust of the Shah wearing a hat with an aigrette and abundantly festooned with Orders and Decorations. On the reverse side, within a circle, Persian legend: al-Sultan al-`Azam wa’l Khaqan al-Afkhim Muzaffar al-din Shah Qajar, 10 Toman value below, ornaments around in outer border with small mint name Tehran at top. This coin was likely struck in conjunction with his formal enthronement. The face value of this coin is 10 Tomans.

According to Wikipedia, Toman is a superunit of the official currency of Iran, the Rial. Toman, derived from a Mongolian word meaning ten thousand (see tumen), was the currency of Iran until 1932. It was divided into 10,000 Dinar. Between 1798 and 1825, the Toman was also subdivided into 8 rial, each of 1250 Dinar. In 1825, the Qiran was introduced, worth 1000 Dinar or one tenth of a Toman. In 1932, the Rial replaced the Toman at a rate of 1 Toman = 10 Rials (i.e., 1 rial = 1 qiran). Although the Rial is the official currency of Iran, many Iranians employ the term Toman in everyday transactions for an amount of 10 Rials. In unofficial circumstances, a Toman may also refer to either 1,000 Tomans or 1,000,000 Tomans. The order of the magnitude of the amount would be considered to be apparent from the context. - Wikipedia [2]