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| LEADER |
02063cam a2200469Ii 4500 |
| 001 |
927616946 |
| 003 |
OCoLC |
| 005 |
20151105093254.0 |
| 007 |
cr c|||||||||| |
| 008 |
151105s2015 mdua ob f000 0 eng d |
| 040 |
|
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|a GPO
|b eng
|e rda
|c GPO
|d MvI
|
| 049 |
|
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|a COM7
|
| 074 |
|
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|a 0306 (online)
|
| 086 |
0 |
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|a D 1.2:C 49/5
|
| 100 |
1 |
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|a Mucklow, Timothy J.
|q (Timothy Jones),
|e author.
|
| 245 |
1 |
4 |
|a The SIGABA /ECM II Cipher Machine :
|b "a beautiful idea" /
|c Timothy J. Mucklow.
|
| 246 |
3 |
|
|a SIGABA electric cipher machine II :
|b "a beautiful idea"
|
| 264 |
|
1 |
|a Fort George G. Meade, MD :
|b National Security Agency, Center for Cryptologic History,
|c 2015.
|
| 300 |
|
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|a 1 online resource ( 44 pages) :
|b illustrations.
|
| 336 |
|
|
|a text
|b txt
|2 rdacontent.
|
| 337 |
|
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|a computer
|b c
|2 rdamedia.
|
| 338 |
|
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|a online resource
|b cr
|2 rdacarrier.
|
| 504 |
|
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|a Includes bibliographical references (pages 38-44).
|
| 500 |
|
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|a "This publication is distributed free by the National Security Agency."
|
| 500 |
|
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|a Title from title screen (viewed June 25, 2015).
|
| 500 |
|
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|a GPO Cataloging Record Distribution Program (CRDP).
|
| 650 |
|
0 |
|a SIGABA cipher system
|x History.
|
| 650 |
|
0 |
|a World War, 1939-1945
|x Cryptography.
|
| 650 |
|
0 |
|a Cryptography
|x History
|y 20th century.
|
| 710 |
1 |
|
|a United States.
|b National Security Agency/Central Security Service.
|b Center for Cryptologic History,
|e issuing body.
|
| 856 |
4 |
0 |
|u https://purl.fdlp.gov/GPO/gpo58671
|
| 907 |
|
|
|a .b49531864
|b cug
|c -
|d 151211
|e 230104
|
| 998 |
|
|
|a cug
|b 210414
|c m
|d a
|e -
|f eng
|g mdu
|h 4
|i 1
|
| 948 |
|
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|a MARCIVE Comp, in 2023.01
|
| 948 |
|
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|a MARCIVE Over, 05/2021
|
| 948 |
|
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|a MARCIVE August, 2017
|
| 948 |
|
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|a MARCIVE extract Aug 5, 2017
|
| 995 |
|
|
|a Loaded with m2btab.ltiac in 2023.01
|
| 995 |
|
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|a Loaded with m2btab.ltiac in 2021.05
|
| 995 |
|
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|a Loaded with m2btab.b in 2021.04
|
| 995 |
|
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|a Loaded with m2btab.ltiac in 2017.09
|
| 989 |
|
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|a D 1.2:C 49/5
|d cuege
|e - -
|f - -
|g j
|h 0
|i 0
|j 216
|k 151211
|l $0.00
|m
|n - -
|o -
|p 0
|q 0
|t 0
|x 0
|w US Gov Docs
|1 .i100377567
|