The currency of Mongolia since 1925 has been the tögrög, which currently circulates mostly as banknotes due to the low value of earlier coins and the reluctance of the government to issue large denomination coins; however, the government has authorised many non-circulating legal tender (NCLT) coins to be issued for collector's purposes.
Collector coins are dedicated to historical or general popular culture themes and are often not related to the country itself. Many of them are in internationally popular sizes, such as the half gram of gold mini-coin format.
The Mint says about this coin:
This is the 7th and last issue of our Revolutionaries series and it highlights a person who was a champion of the underprivileged.
Mother Teresa (1910 - 1997) was born as Anjezë Bojaxhiu in Skopje (now capital of North Macedonia). Honoured in the Catholic Church as Saint Teresa of Calcutta, she was an Albanian-Indian Roman Catholic nun and missionary. After living in Skopje for eighteen years, she moved to Ireland and then to India, where she lived for most of her life. In 1950, Teresa founded the Missionaries of Charity, a Roman Catholic religious congregation that today has over 4,500 nuns and is active in 133 countries. The congregation manages homes for people who are dying of HIV/Aids leprosy and tuberculosis. It also runs soup kitchens, dispensaries, mobile clinics, children's and family counselling programs, as well as orphanages and schools.
Mother Teresa, the Angel of Mercy, was called a "living saint" because she spent her whole life helping those who had nowhere to go and no one to turn to. Wherever she went Mother Teresa never turned away from difficult or unpleasant situations and always saw to the needs of the poorest of the poor, the homeless, the sick and the dying people. Teresa received a number of honours, including the 1979 Nobel Peace Prize. She was canonised on 4th September 2016. | 
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