The cone oboe known as the surnā(j) probably originated in the Arab-Persian area of influence and spread from the Maghreb in the west to China in the east; it is considered the precursor of the European shawm. This woodwind instrument with a double reed is characterised by its dark-coloured wood. A circumferential tinplate ring is attached to the tip and under the last finger hole. Both were probably once used to attach a transport chain, which is now attached to the top of the reed holder and the bottom of the cup rim and secures a wooden lip disc and a complete replacement mouthpiece.