51.0 MB (5.1 MB compressed)
3456 x 5162 pixels
29.2 x 43.7 cm ⏐ 11.5 x 17.2 in (300dpi)
MARK WILLIAMSON / SCIENCE PHOTO LIBRARY MARK WILLIAMSON / SCIENCE PHOTO LIBRARY
Four-rotor Enigma encoder used by Germany in World War II to send coded messages. The codes, which were changed daily, were 'cracked' by the Bletchley Park codebreakers in the UK including mathematician Alan Turing.
Model release not required. Property release not required.