Tri zimy medzi kryhami Arktídy - Konstantin Sergejevič Badigin | Databáze knih
International Spy Museum on Instagram: “#SPYArtifact of the Day: Kryha Cipher Machine, UK, 1930s. Developed in the 1920s, the Kryha was a clockwork-driven mechanical device for…”
Ľadová kryha z kamióna zranila 12-ročného chlapca, poranila mu tvár
Catalog of Enigma cipher machine wirings; Chapter IV: Enigma wirings – A. Unsteckered Enigmas — Part III; June 1954