Yugoslavia, 1965 AD., Zagreb in Croatia, medal on the Zagreb numismatic symposium.

Yugoslavia, Zagreb in Croatia, medal on the Zagreb Numismatic Society symposium, 1965 AD.,
Medal (27 mm / 9,00 g), bronze, axes medal alignment ↑↑ (0°), plain edge,
Obv.: I NUMIZMATIÄŒKI SIMPOZIJ / ZAGREB 1965 // SECVIIDVCI - DVX PAVL / BAIIHLAD , (" I numismatic symposium / Zagreb 1965") , modern legend around depiction of an old Bosnian coin.
Rev.: NUMIZMATIÄŒKO DRUÅ TVO / MUZEJSKI / DOCUMENTACIONI CENTAR / RADIONICE Å PU ZAGREB , ( " Numismatic Society / museum / Documentation Center / workshops SPU Zagreb" ) , four lines text.

for the coin obverse depicted cf: Mimica, Boze: Numismatik auf dem historischen Boden Kroatiens (IV. Jh. v. Chr. - 1918), Vitagraf 1992, Nr. 2 (R6) .

thanks to "natko" who stated: Paulus and Ban Mladen I. of Bosnia, 1302-1304. Grosso, a Bosnian coin made alike to these Venetian grossi, but it can be read Ban Mlad(en) in vertical line with Dux Paul on the right which corresponds to joint reign of Duces Paul Šubić and his son Mladen.
http://en.wikipedia.org/wiki/Mladen_II_%C5%A0ubi%C4%87_of_Bribir
http://en.wikipedia.org/wiki/Paul_I_%C5%A0ubi%C4%87_of_Bribir