Page 317 - The Secret War in the Italian front in WWI (1915-1918)
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CHAPTER FOURTEEN
The Path to Victory
14.1 LAST CIPHERS FOR THE ITALIAN RADIO STATIONS
The “s code grouP”
The new SB service system was a two-part code distributed on 6 July and entered service on 5
August 1918 to replace the CFbis for communications between radio stations of Headquarters
down to Divisions . The first letter B identified the code as a release of the series characterised by
1
the initial “S”, which also included versions SA, SC, and SD. The SA was most likely implemented
before the SB but distributed to all Radiotelegraphic stations only in October.
14.1 First page of the encoding and decoding parts of a S-series service code (ISCAG Library)
1 Chief Inspector STM, Diari, Circolare riservatissima N° di Prot. 28590 del 6 luglio 1918 e Circolare riservatissima, N° di
Prot. 32246 del 25 luglio 1918, ambedue con oggetto: Cifrario di Servizio SB (Very confidential circulars both concerning;
Service Cipher SB), AUSSME, Series B1, 105S, Vol. 91.
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