Masked dispatches
Subtitle: cryptograms and cryptology in American history, 1775-1900
By: Ralph E. Weber
Contributors: United States. National Security Agency/Central Security Service. Center for Cryptologic History
Edition: Third edition.
Series: United States cryptologic history. Series 1, Pre-World War I -- v. 1; United States cryptologic history -- v. 1
Publisher: Center for Cryptologic History, National Security Agency
Published: 2013
Place of publication: Fort George G. Meade, MD]
Language: eng
Number of pages: 202
Subjects: Cryptography; History
Other titles: Cryptograms and cryptology in American history, 1775-1900
Notes: Title from title screen (viewed Oct. 20, 2014).

"CCH-EC-02-03."

Includes bibliographical references (pages 225-227).