The Mansion 7/10/2004

4-rotor Enigma machine @ Bletchley Park

Bombes were used against the Enigma cipher.

Front panel, 3-rotor Bombe mockup

Bombe under reconstruction

Bombe under reconstruction

The Colossus computers were used against the Lorenz cipher. The reconstructed Mk2 has 2,500 valves.

Reconstructed Colossus Mk 2 working(!) + Tony Sale (1931-2011)

Reconstructed Colossus Mk 2 working(!) 7/10/2004
(tape wheel frozen by the flash)