Cover Image

Masked dispatches cryptograms and cryptology in American history, 1775-1900 /

Main Author: Weber, Ralph E. 1926-
Other Authors: United States. National Security Agency/Central Security Service. Center for Cryptologic History.
Format: Microfilm
Language: English
Published: [Fort George G. Meade, MD] : Center for Cryptologic History, National Security Agency, 2002.
Physical Description: vi, 227 pages : illustrations ; 28 cm.
Edition: 2nd ed. 2002.
Series: United States cryptologic history. Pre-World War I ; v. 1.
Subjects:
Cryptography -- United States -- History.
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245 1 0 |a Masked dispatches  |h [microform] :  |b cryptograms and cryptology in American history, 1775-1900 /  |c Ralph E. Weber. 
250 |a 2nd ed. 2002. 
264 1 |a [Fort George G. Meade, MD] :  |b Center for Cryptologic History, National Security Agency,  |c 2002. 
300 |a vi, 227 pages :  |b illustrations ;  |c 28 cm. 
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490 1 |a United States cryptologic history. Series 1, Pre-World War I ;  |v v. 1. 
500 |a "First edition 1993." 
500 |a Shipping list no.: 2002-0529-M. 
504 |a Includes bibliographical references (pages 225-227) 
500 |a "CCH-EC-02-03"--Cover. 
533 |a Microfiche.  |b [Washington, D.C.] :  |c Supt. of Docs., U.S. G.P.O.,  |d 2002  |e 3 microfiches : negative. 
650 0 |a Cryptography  |z United States  |x History. 
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