Communication Code of Basic Japanese Characters - Office of Strategic Services - 47-K - January 1945
Chiffre No. 5 - Tableau Special pour l'emploi du 5e chiffre, Signes conventionnels, ponctuation, code general et mots conventionnels pouvant servir en cas de missions speciales - 1908
Tableau des Signes de Ponctuation et Indications Diverses - Ministere de l'Interieur, Service du Chiffre - No Date (likely 1930's)
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