9 of 19Image
The Tunny machine at the National Museum of Computing
From space travel to time travel. In June, we took a look at the work of computing enthusiasts who have rebuilt a machine that helped crack the codes used by the Nazi high command during World War II.
This is a close-up of the Tunny machine, which is housed at the National Museum of Computing in Buckinghamshire.
See more shots of the fully functional code-cracking machine at WWII machine that cracked Nazi codes is reborn.
Photo: John Robertson