Şifre miftahı
By: Ali Nihat Bey
Contributors: Karl Süssheim Collection (Library of Congress)
Publisher: Matbaa-yi Osmaniye
Published: 1893
Place of publication: Istanbul]
Language: ota
Subjects: Ciphers; Cryptography
Notes: At head of title: Hariciye Nezaret-i Celilesinin muhaberat Türkiyesine mahsus.

Library of Congress. Karl Süssheim Collection, no. 1814.

Turkish Arabic script.

Süssheim Collection, gift of Yale University, March 1992.