The Newmanry History

38 Page 294

The time for making a combined flag was about 3 1/2 hours.

If the converged combined flag proved significant the Delta-X5 pattern was

Results were recorded and further work was normally done in Room 41, unless

If the combined flag proved insignificant, all working and entering was

(a) the key was abandoned

(b) a Delta-X4 flag was made,

(c) the key was issued to Colossus for convergence of a 150 x 150
rectangle in the hope that this might prove significant.

In view of the work involved in making a combined flag and the strain on

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