Interesting coin and concept... too bad this came out in 2019.
Wonder if anyone cracked the code?
Yeah, the previous coin was cracked:
Following the recent completion of the competition, the Mint can now reveal that the secret message on the coin reads “there is no greater honour than the trust of the Australian people or weightier burden than protecting the security of Australia and its people”.
Queensland’s very own Andrew Olsson is the winner of the only proof coin in existence that featuring the 70th Anniversary of ASIO coin design.
This is how the new coin looks:
It is sold out already in the Royal Australian Mint, but you can get it from resellers on ebay, etc.
"The commemorative 50c coin contains four kinds of secret code."
"Like the early code breakers in ASD, you can get through some of the layers with but a pencil and paper but, right towards the end, you may need a computer to solve the last level"