Enigma Geocoin

The Caching Place wrote;

Mars Bars coin design, we knew we wanted to get involved!! Dave Mars, a geocacher from the UK, who designed this coin, has encrypted a secret code on the coin. It's up to you to "break" the code!! The coins turned out beautiful and are done in two-toned metals, trackable at Geocaching.com with a custom icon! We have produced 250 regular edition coins and 25 limited edition coins. There will be 8 Antique Bronze/Chrome LE coins awarded as prizes in a random drawing of all correct entries submitted before Jan 26, 2008. The first individual to "break" the code will receive one of each versions of the coin as their prize.
This coin has been produced as a tribute to British and Allied forces cryptographers who worked at "Station X", Bletchley Park, England. Please note, depending on demand, we reserve the right to mint additional regular edition coins. Only 25 of LE coins will ever be minted.

You can get them HERE.