www.mongoliancoins.com is a website by N.Nyamaa about Mongolian coins and banknotes of all time.
Next to the website there is a book, called " Coins of Mongol Empire & Clan Tamgha of Khans" which can be ordered via this site.
Following is copied the introduction to the website:
In 1206 the Great Khurultai of all Mongol Lords was held at the start of the Onon river to unite Mongol provinces and small tribes into one nation of Mongol Statehood.
At this Khuraltai Temujin was declared as the Great Khagan of Mongols and given the name of Chinggis Khan.
2006 celebrates the 800-th anniversary of the declaration of Mongol Empire. I’ve been working on a website of Mongolian coins and paper banknotes of all times and targeted its release to this commemorative date.
The term Numismatic does not only relate to a small group of people with a hobby to collect coins and banknotes but it also refers to the history, politics, economy, language and culture, and even science of any given country. It is a much broader subject than a lot of people seem to think.
That is why so much time, attention and effort are invested in to this subject. The importance of Numismatic has earned it the status of a separate subject of science to study. In many countries the coins and banknotes of the past are stored in museums and treasured as national historic items.
On my website the coins and banknotes are divided into two main categories: ancient and contemporary.
Among the ancient historical valuables a special emphasis should be made to the coins and banknotes of XIII-XIV centuries. These coins and banknotes are unique in their shape and style, they have specific writings minted on them and they were used throughout the vast lands.
Undoubtfully, they cover a lot of world history of their own time and hence are subjects of interest to many numismatics and historians alike. Hundreds of publications worldwide are devoted to the research of these coins and banknotes.
Several valuables of Mongolian Numismatics can be found in museums of Russia, China, England, Germany, USA, Taiwan, Uzbekistan, Georgia, Armenia, Turkey and other countries. For example, Yapi Kredi Bank of Turkey and El Khalifa Bank of Saudi Arabia have a treasure collection of beautiful and rare coins of Mongol Empire.