In 1928, during the Soviet era, the currency was 0.5 kobi
The smallest denomination Goby coin issued by the Soviet Union. 1 ruble equals 100 kobi. The denominations of banknotes are 5, 10, 50, 100, 200, 500, 1000, 2000, 5000 rubles, and there are also 50, 10, 5, and 1 kobi coins. Face value: 0.5. Year of Issue: 1991. Material: Copper nickel alloy.