A message can be sent by Morse code and an interactive display demonstrates Cardwell's role in the telegraph line race between Queensland and South Australia.
•
The Postmaster was also Linesman-in-Charge, responsible for maintenance of the telegraph line in his sector.
George W. Bush | George H. W. Bush | The Daily Telegraph | Laura Bush | Jeb Bush | Bush | Barbara Bush | Kate Bush | telegraph | The Sunday Telegraph | Presidency of George W. Bush | Shepherd's Bush | Sam Bush | Rhodesian Bush War | Reggie Bush | Nippon Telegraph and Telephone | Bush Stone-curlew | Bush (band) | Vannevar Bush | The Daily Telegraph (Australia) | Sheffield Telegraph | President Bush | Prescott Bush | Telegraph Media Group | Skippy the Bush Kangaroo | Cardwell | Bush House | Belfast Telegraph | Transatlantic telegraph cable | Telegraph Hill |