The US 6812 Division Bombe Report Eastcote 1944 Page 63

Tony Sale's Codes and Ciphers

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- 51 - TOP SECRET-T




Note: When phoning in a stop to the IC OPS where a subsidiary chain is

involved, and it has been impossible to get on the subsidiary chain
from the main chain through checking, the checker must read the
settings of the link on the subsidiary to the IC OPS.


As soon as the last stop has been checked the checking sheet will be turned
over to the operator who will turn in the menu, job sheet and checking
sheet to the IC OPS.

IC OPS PROCEDURE ON HUT 6 STOPS AND END OF RUN.

When the checker phones in the particulars of a correct stop,

the IC 0PS records the particulars in the Teleprinter Log book in the
following form:

The Hut 6 Serial number is a message number and is one of a series starting
with 1 each day at 0000 and always takes the form of 6/.. The 6 indicates
to the Teleprinter Room of Hut 23 where it is received, that the message
goes to Hut 6 and it goes direct. In the M/C column is entered the name of
the bombe involved. Under Job Name is written the name assigned to the key.
The Job Date is the date of interception of the message. In the Job No.
column is entered the job


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