Balkan studies. Édition de lA̕cadémie bulgare des sciences. 1988. էջ 111. «The mint at Novo brdo (in Turkish "Novar"), was the first to start striking Ottoman akçe — as early as 1441, when Murad Il's military commander, the eunuch Sibab ed-Din pasa captured the town, which had the greatest silver deposits and the ...»