The Dacian Draco was the standard and ensign of troops of the ancient Eastern European Dacian people, which can be seen in the hands of the soldiers of Decebalus in several scenes depicted on Trajan's Column in Rome, Italy. It has the form of a dragon with open wolf-like jaws containing several metal tongues. The hollow dragon's head was mounted on a pole with a fabric tube affixed at the rear. In use, the draco was held up into the wind, or above the head of a horseman, where it filled with air and gave the impression it was alive while making a shrill sound as the wind passed through its strips of material.
Read more about Dacian Draco: Name and Etymology, Origins, Significance, Dacian Draco As Adopted By The Roman Army After 106 AD, Votive Tablets, Copies, Legacy