Charts on Ciphered Codes

Document A4148936

178.3 KiB

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Cipher Printing Telegraph

Document A4148946

242.61 KiB

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Key Tapes Paper

Document A4148938

174.46 KiB

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Memorandum for Major Bender on the Modifications Proposed for Making the Printing Telegraph Cipher Safe for the Use of the Army

Document A4148935

999.42 KiB

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Memorandum Fro Lt. Col. J.O. Mauborgne on Mechanical Four Unit Ciphering Device

Document A4148947

122 KiB

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Multiplex Perforator Tape

Document A4148937

32.27 KiB

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Operating Instructions for Line Operating Sets

Document A4148942

240.44 KiB

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Operating Instructions for Local Operating Sets

Document A4148941

383.86 KiB

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Operation of Cipher Printing Telegraph Apparatus

Document A4148943

194.12 KiB

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Regulations for the Test of the Printing Telegraph Cipher

Document A4148939

202.28 KiB

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Regulations for the Test of the Printing Telegraph Cipher

Document A4148945

102.62 KiB

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