Maguire, Charles H J (Charles Henry books & textbook
Maguire's Code of Ciphers [microform]: a Comprehensive System of Cryptography Designed for General Use and Arranged in Conformity With the Rules and ... of Telegraph Companies, Respecting "secret...
Maguire, Charles H J (Charles Henry
Legare Street Press /2021-09-10 Paperback / 134 Pages
isbn-10: 1014995485 / isbn-13: 9781014995483
