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:
Although born to poor circumstances, Abraham Lincoln is one of the greatest heroes in American history. Self-taught, he ventured into politics at a young age and was elected 16th president of the United States of America in 1860. Even then, due to different views on slavery, the terrible American Civil War was already looming. Shortly after the beginning of his second term of office, Abraham Lincoln was shot dead by the actor and confederate fanatic John Wilkes Booth in 1865.
His political legacy was fulfilled shortly after his death: The abolition of slavery was incorporated in the US Constitution and the Southern States were integrated into the Union again. | 
Search for Mongolia: Gold Half Gram 2015 Abraham Lincoln on eBay 