The story
The Banque Centrale de Madagascar has origins in the Banque de Madagascar, which issued the Madagascar-Comores CFA franc, beginning in 1925, as Madagascar's currency. In 1945, after the creation of Territory of Comoros, the Banque de Madagascar et des Comores was formed; concurrent with the creation of many other African franc currencies.
After Madagascar's independence from France in 1960, Madagascar began issuing the Malagasy franc (MGF) again, as the currencies of the Comoros and Madagascar were separated.
In 1973, Madagascar left the CFA franc zone and the Malagasy franc was declared inconvertible by the authorities of the Confederation Franc Africaine. Madagascar's coins and banknotes were then issued by Madagascar's Institut d'Émission Malgache until 1974 when the Banque Centrale de Madagascar was formed. Since 2005, the Malagasy ariary (MGA), issued by the Banque Centrale de Madagascar, has been the country's currency.
From Wikipedia’s article on Central Bank of Madagascar, shared under CC BY-SA 4.0.4