Australian Signals Directorate on Twitter: "To commemorate our #75YearsOfASDHistory, today we are excited to unveil a limited edition 50c commemorative coin. The coin, designed in collaboration with @RoyalAustMint will be a keepsake
How to solve the Australian Signals Directorate 75th anniversary 50 cent coin - ABC News
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Coded Royal Australian Mint Coin Signals ASD 75th Anniversary
Secret Codes Hidden in Royal Australian Mint's New 50 Cent Coin - 101.7 7HOFM Hobart
How to solve the Australian Signals Directorate 75th anniversary 50 cent coin - ABC News
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iTWire - Initial thoughts on the ASD encoded 50c coin
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75th Anniversary Commemorative Coin Challenge | Australian Signals Directorate
Australian Signals Directorate 50c Coin Decryption | R-bloggers
Australia: New commemorative coins mark 75th anniversary of Australian Signals Directorate Intelligence Unit | Coin Update
Amateur code breakers challenged to decipher secret messages on Australian coin | Australia news | The Guardian
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New Australian Signals Directorate coin has a secret code on it - can you crack it? | Braidwood Times | Braidwood, NSW
Crack the Code on This 50-Cent Coin and You Could Score Yourself a Job at the ASD | Flipboard
75th Anniversary Commemorative Coin | Australian Signals Directorate
14-year-old breaks Australian coin cipher - UK Daily News
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