The akçe or akça (also spelled akche, akcheh; Ottoman Turkish: آقچه; Turkish pronunciation: [akˈt͡ʃe], [akˈt͡ʃa], in Europe known as asper or aspre) was a silver coin which was the chief monetary unit of the Ottoman Empire and was once used by Aq Qoyunlu in the early period.
In 1843, the silver kuruş was joined by the gold lira in a bimetallic system.
[4] The name akçe originally referred to a silver coin but later the meaning changed and it became a synonym for money.
The mint in Novo Brdo, a fortified mining town in the Serbian Despotate rich with gold and silver mines, began to strike akçe in 1441 when it was captured by the Ottoman forces for the first time.
[5] The Suleiman Mosque in Istanbul is said to have cost 59 million akçe when it was constructed in the 1550s.