The exhibition presents a collection of historical devices used by armies, intelligence services, and opposition forces to transfer secret information - telegraphs, telephones, and radios. There are eleven interactive stands on display enabling audience members to take on the role of a spy. The exhibition also makes a reference to the current use of cryptography on the internet and in telecommunications technology. The exhibition is accompanied by a guided tour, various family activities, and games. The exhibition is open to the public till January 31st, 2020, but checking the website before visiting is advised www.mim.krakow.pl 

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