Le contr'espion, ou, Les clefs de toutes les correspondances secrettes.
Contributors: George Fabyan Collection (Library of Congress)
Publisher: Chez la Veuve Guillot, imprimeur-libraire ...
Published: 1793
Place of publication: A Paris
Language: fre
Number of pages: 96
Subjects: Cryptography -- Early works to 1800.; Cyphers -- Early works to 1800.; Signs and symbols -- Early works to 1800.
Other titles: Clefs de toutes les correspondances secretes; Contre'espion
Notes: Galland, J.S.  An historical and analytical bibliography of the lit. of cryptology p. 56
Signatures: A-H⁸·⁴
LC copy is item no. 240 of the George Fabyan Collection.