A handbook of practical telegraphy.
By: By R. S. Culley ... Adopted by the Post office and by the Department of telegraphs for India.
Edition: 6th ed., rev. and enl.
Publisher: Longmans, Green, Reader, and Dyer
Published: 1874
Place of publication: London
Language: eng
Number of pages: 443
Subjects: Telegraph -- Operators' manuals; Cables, Submarine