Rare Books
The Pacific cryptograph : a complete double index cipher for telegraphing
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Cipher for Telegraphic Correspondence; arranged expressly for Military Operations, and for important Government despatches. [Cipher Book #1]
Manuscripts
25 pages; 15 x 9 cm. List of cipher holders on front fly leaf. Instructions for use are handwritten and glued onto inside back cover. Added pages glued in. Cipher for numerals on back fly leaf.
EC 45
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Cipher for Telegraphic Correspondence; arranged expressly for Military Operations, and for important Government despatches. [Cipher Book #9]
Manuscripts
8 pages; 16 x 9 cm. On fly leaf is written: C. F. Gross. On the t.p. verso is a list of cipher holders. At bottom of the Explanation page is written: C. F. Gross.
EC 67
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Cipher for Telegraphic Correspondence; arranged expressly for Military Operations, and for important Government despatches. [Cipher Book #1]
Manuscripts
25 pages; 15 x 9 cm. Written above explanation page: No. One Cipher. Instructions clued to front fly leaf. List of cipher holders opposite p. 1, A letter and instructions within an envelope has been laid into this cipher book; letter, dated July 10, 1865 and repeated April 10th, 1867, is from Eckert to Captain R.C. Cloury(?), St. Louis, Missouri, in regards to the use and return of Cipher Book #5.
EC 41
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Cipher for Telegraphic Correspondence; arranged expressly for Military Operations, and for important Government despatches. [Cipher Book #1]
Manuscripts
24 pages; 15 x 9 cm. No cipher holders are listed, nor are there any instructions. Added pages glued in. Cipher for numerals on back fly leaf.
EC 46