[ncmncm]

You really cannot perceive the difference between a few square inches on a newspaper page and a custom-minted coin?

They clearly hoped it would take at least weeks for a full solution, so they could have multiple press events. Or if not, they should have; incompetent either way.

[theteapot]

Have you actually tried it? If ASD thinks this would take a week to crack Australia as a nation is in trouble.

Custom minted coins is not that uncommon in Australia. There's been over 100 of them.