Post office telegraphs
Subtitle: Connections of telephonic apparatus and circuits.  General Post office, 1909
Publisher: Printed for H. M. Stationery off., by Eyre and Spottiswoode, ltd.
Published: 1909
Place of publication: London
Language: eng
Number of pages: 285
Subjects: Telephone; Handbooks, manuals; Postal service
Notes: Text runs parallel with back of book.