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The brief was to make a permanent artwork to celebrate the work of William 'Bill' Tutte at Bletchley Park during World War II. Coded signals from the Nazi High command were intercepted and printed as perforated paper tape. Tutte cracked this code and the information it gave the Allies is considered to have shortened World War II by up to two years.


Harry Gray's concept was to use a series of 2.4 metre high perforated steel panels made in the same proportion as the paper tape. When viewed from close by the panels have an abstract quality and when viewed from a distance the matrix of holes merge to form a portrait of Bill Tutte. The face of the man is made visible within the famous code that he cracked. 

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