Die Methoden der Geheimschriften (Zifferschriften) :
unter Berücksichtigung ihrer geschichtlichen Entwicklung /
von Ernst Dröscher.

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Main Author: Dröscher, Ernst
Related Names: George Fabyan Collection (Library of Congress)
Language(s): German
Published: Leipzig : K. F. Koehler, 1921.
Subjects: Ciphers.
Cryptography
Physical Description: xi, 83 p. ; 24 cm.
Locate a Print Version: Find in a library

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