Maguire's code of ciphers
Subtitle: a comprehensive system of cryptography designed for general use and arranged in conformity with the rules and regulations adopted by the International Convention of Telegraph Companies, respecting "secret language telegrams"
By: by Charles H.J. Maguire.
Series: CIHM/ICMH Microfiche series -- no. 09507
Publisher: [s.n.]
Published: 1981
Place of publication: Québec
Language: eng
Format: Microform
Number of pages: 67
Subjects: Cryptography.; Ciphers.
Notes: Filmed from a copy of the original publication held by the D.B. Weldon Library, University of Western Ontario. Ottawa : Canadian Institute for Historical Microreproductions, 1981.