OP-20-G or "Office of Chief Of Naval Operations (OPNAV), 20th Division of the Office of Naval Communications, G Section / Communications Security", was...

in Op. 20 G. As a result of this we were able to use the Op. 20 G bombes almost as conveniently as if they had been at one of our outstations 20 or 30...

Bletchley Park over teleprinter links (using the Combined Cipher Machine) to OP-20-G for both 3-rotor and 4-rotor jobs. Although the German army, SS, police...

Division of Naval Communications' newly created cryptanalytic organization, OP-20-G, from 1926 to 1929; training in the Japanese language from 1929 to 1932;...

amongst US Navy cryptographic stations. HYPO was under the control of the OP-20-G Naval Intelligence section in Washington. Before the attack on Pearl Harbor...

(cryptography) Signals Intelligence Service US Army, see also Arlington Hall OP-20-G US Navy Signals Intelligence group Elizebeth Smith Friedman William Friedman...

"Mozartiana" Op. 61. Three Préludes for Piano (Op. 11/3, Op. 13/3 and Op. 39/3) by Alexander Scriabin are in G major, as well as the Mazurka for orchestra op. 18...

The Ballade No. 1 in G minor, Op. 23 is a ballade for solo piano by Frédéric Chopin. Completed in 1835, it is one of Chopin's greatest and most popular...

Piano Trio, Op. 8 Ballade No. 1, Op. 23 Nocturne, Op. 37, No. 1 Prelude "Impatience", Op. 28, No. 22 Cello Sonata, Op. 65 Polonaise in G minor, Op. posth....

Irene Bloomfield Action This Day (memo) Banburismus Hut 4 Hut 6 B-Dienst OP-20-G Noskwith 2011 Secret Days: Code-breaking in Bletchley Park by Asa Briggs...