1. World's first control tower completes 100 years  Airport Technology
  2. Airport air traffic control tower celebrates its 100th birthday  Airport World Online
  3. Fascinating archive pictures of the first-ever air traffic control tower in Croydon  Daily Mail
  4. 100 years of air traffic control: how a tiny shed at Croydon Airport changed travel forever  Telegraph.co.uk
  5. 100th anniversary of commissioning of world's first air traffic control tower  ITV News
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