27 reactions | A triumph of ingenuity and craftsmanship, this Swiss cipher machine is a fabulous example of mechanical precision. Cipher machines are used to encrypt and decode messages and are most often associated with military campaigns. Though cipher decoders have existed since antiquity, mechanized cipher machines first appeared around World War I. View more details here: https://hubs.la/Q01kSypp0 | M.S. Rau | Facebook