The semaphore
Subtitle: the story of the Admiralty-to-Portsmouth shutter telegraph and semaphore lines, 1796 to 1847
By: T.W. Holmes.
Publisher: Stockwell
Published: 1983
Place of publication: Ilfracombe, Devon
Language: eng
Number of pages: 223
Subjects: Great Britain. Royal Navy -- Communication systems -- History -- 18th century; Great Britain. Royal Navy -- Communication systems -- History -- 19th century
Notes: Bibliography: p. 222-223.