#An unknown cipher machine from the 1920s – Klausis Krypto Kolumne
„An unknown cipher machine from the 1920s – Klausis Krypto Kolumne“ An old newspaper article mentions a Czech cipher machine from the 1920s. Can a reader find out more about this device? Deutsche Version des Artikels (Test) The decade after the First World War is an interesting one for crypto historians. After almost all (manual)…