United States. A 55th Infantry Regiment, 7th Infantry Division Soldier's Diary and Note Book 1917, Named
United States; Entitled "The SOLDIERS' DIARY AND NOTE BOOK / Containing useful information invaluable to the soldier at home or at the front", published by Thomas Y. Crowell Company, New York, and named in black ink "Gudmund Jacobs / Orchard Lake Ave / Pontiac Mich / 55th Inf. / 7th Div." on the ownership page. Contents include fifteen areas of interest (Foreign Money with United States Equivalents; English Linear Measure and Metric Equivalents; Definitions; Penetration of Rifle Bullet; Semaphore Code; General Service Code; Some Useful Knots; Hints for Judging Distances; First Aid in Case of Accidents; Tommy's Vocabulary; Soldiers' French; Useful Information; Diary; Cash Account; Memoranda), with line graphics (showing the various Semaphore Codes, Morse Alphabet/Numerals, Knots, along with three dozen others in the Useful Information section), with calendars for 1918 and 1919 on the back page, along with various personal notations in pencil and black ink in the 1917 Diary and Memoranda sections. Brown cloth-finished paper semi-hardcover, containing 160 pages, with text and graphics printed in black ink, 74 mm (w) x 128 mm (h) x 10 mm (d), light edge wear, housed in a period lightly soiled Army green cloth pouch with snap closure, red hand-embroidered letters inscribed "G Jacobs" on the flap, missing its snap cap on the flap, the snap receiver intact, near extremely fine.

