The telegraph manual
Subtitle: a complete history and description of the semaphoric, electric and magnetic telegraphs of Europe, Asia, Africa, and America, ancient and modern : with six hundred and twenty-five illustrations
By: by Tal. P. Shaffner.
Publisher: D. Van Nostrand
Published: 1867
Place of publication: New York
Language: eng
Number of pages: 850
Subjects: Telegraph -- History.