This research aims to publish two silver coins, representing two Akça from the Ottoman era, which have not been previously published or studied. They are preserved within the collection of Mr. Fadi Salaymeh in Germany. They are of great importance as the first Akça is a rare Akça minted in the name of the Ottoman Sultan Mehmed II in Edirne, ca. 848-855 AH to 1444-1451 AD. At that time, Edirne was the capital of the Ottoman Empire before the conquest of Constantinople. As for the second Akça, it is a unique Akça minted in Constantinople in the name of the Ottoman Sultan Selim I. It is one of the few and rare silver coins minted by Sultan Selim I in Constantinople when he assumed power in 918 AH/1512 AD. The research indicated that despite the renaming of Constantinople (Islambul) after its conquest by Sultan Mehmed II, the name Constantinople continued to appear on some Ottoman coins of various types, as a place where the currency was minted, such as the silver Akça bearing the name of Sultan Selim I. This paper also included a descriptive and analytical study of the two Akça subject of the study in terms of their general form and content of the inscriptions as well as their decorations.