stackyFACTS
History

The secret messages hidden inside coins

HERE’S THE INTERESTING PART

Covert operatives operating deep behind hostile borders cleverly unscrewed ordinary looking currency to hide tiny encrypted messages. If an agent accidentally used the trick coin to buy a cheap newspaper, vital geopolitical intelligence was embarrassingly handed to a confused cashier.

The secret messages hidden inside coins
STACKY / History
One discovery leads to another.

Keep exploring facts in this topic.

History →
STACKY FOR IPHONE

A bigger world.
One discovery
at a time.

Keep discovering with Stacky. Interesting facts in an app that is always within reach.

Download on the App Store
ONE MORE DISCOVERY?

Keep exploring

All in this topic →
StackyMore discoveries in the app
Download on the App Store