Common, scarce and rare Comoros currency (paper money; bank notes [also, banknotes]) at Mintmark.com.
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"The franc (French: franc comorien; Arabic: فرنك قمري) (ISO 4217 currency code KMF) is the official currency of Comoros. It is nominally subdivided into 100 centimes, although no centime denominations have ever been issued . . . The first Comorian paper money was issued in 1920. It consisted of an emergency issue of Madagascar postage stamps fixed to card to allow them to circulate as money. Denominations of 50 centimes and 1 franc were issued. Loi ordinaire 62-873 du 31 juillet 1962, Article 12, allowed the Banque de Madagascar et des Comores to continue issuing notes in Comoros after Madagascar began issuing its own currency but, beginning 1 April 1962, they had COMORES overstamped on them. Denominations of 50, 100, 500, 1000 and 5000 francs were issued. As per Décret 64-1038 du 07 octobre 1964, banknotes without the overstamp ceased to be legal tender on 31 December 1964. The overstamped
notes circulated until 1976, when 500, 1000 and 5000 francs were introduced by the Institut d'Émission des Comores, the 50 and 100 franc notes being replaced by coins. The central Bank took over production of paper money in 1984. 2500 and 10,000 franc notes were introduced in 1997, followed by 2000 francs in 2005. The 2500 franc note is being withdrawn from circulation. Comorian banknotes are manufactured by the Banque de France at their paper mill in Vic-le-Comte and their printing works in Chamalières, both in Puy-de-Dôme, Auvergne. The new 500, 1000, and 2000 franc notes contain the EURion constellation . . ." — Comorian franc at Wikipedia