Wladymirec1

Hello! I need help with identyfing this item. Probably coin. Found on beach in Croatia. Weight: 2.6g Size: On picture in comparison with 10 polish grosz (16,50 mm diameter) Google picture search get me into this: https://antinumus.com/en/ottoman-empire-manghir-xv-century/ I found some info about and weight is approx same. https://www.lexico.com/definition/manghir?fbclid=IwAR3PErTAbjREzAdXRTxvQoEtHqtNLyig-LFUqOT3GxcohpBfB-WlIxt0Nhk May it be the manghir or just some monetary weight?