Referees whistle: short, double¨, long¨, longer¨ 1", 1" 1", 2" - 1968
Police whistle: single¨, double¨, treble¨ 1", 2", 4" - 1968
Tuneless whistling - 1968
Five finger whistles - 1968
Wolf whistles - 1968
Whistle
Half time whistle
Whistle, angry crowd
Whistle for throw in
Final whistle and crowd disperse
Communication whistle
Armed trawler, communication whistle
