What type of gesture does Minority languages of Austria and Austrian State Treaty have in common?
Austrian State Treaty The Austrian State Treaty (German:    ) or Austrian Independence Treaty re-established Austria as a sovereign state. It was signed on 15 May 1955 in Vienna, at the Schloss Belvedere among the Allied occupying powers (France, the United Kingdom, the United States, and the Soviet Union) and the Austrian government. It officially came into force on 27 July 1955.
Three-finger salute (Serbian) The three-finger salute (Serbian: три прста / "tri prsta ", "three fingers"), commonly known as the Serb salute, is a salute which originally expressed Holy Trinity, that today simply is an expression, a gesture, for ethnic Serbs and Serbia, made by extending the thumb, index, and middle fingers of one or both hands.