108 pages; 18 x 12 cm. Title supplied by cataloger. Handwritten partial copy of Cipher Book #1. Possibly used by Thomas T. Eckert. Tan calfskin. P. 30-108 are blank.
111 pages; 17 x 11 cm. Title supplied by cataloger. Handwritten copy of Cipher Book #1. Possibly used by Thomas T. Eckert. . Black calfskin. Pages used are hand-numbered. P. 71-111 are blank.
192 pages; 17 x 11 cm. Title supplied by cataloger. Eckert's name inside front cover, and scratch onto the cover. Black calfskin. Unknown as to which cipher this copying. P. 70-190 are blank.
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.
47 pages; 16 x 9 cm. Title supplied by cataloger. Glued to the inside front cover is a list of cipher holders. Glued to the fly leaf: Memorandum index. On verso of page 1: No. 5.
40 pages; 16 x 9 cm. Title supplied by cataloger. On verso of page 1: No. 5. Laid in front cover are directions for Cipher 5 on the Department of the Cumberland Stationery, dated 1865, Aug. 1.
40 pages; 16 x 9 cm. Title supplied by cataloger. On fly leaf: 5. On verso of page 1: 5. Laid inside the book are directions for use of No. 4 & 5 cipher on a yellow carbon paper sheet.
