The modern service of commercial and railway telegraphy
Subtitle: in theory and practice, arranged in questions and answers.
By: Designed for students and operators.
Edition: 2d. ed., rev. and enl. Comp., prepared, and pub. by J. P. Abernethy.
Publisher: Govt. print. off.
Published: 1883
Place of publication: Cleveland, O
Language: eng
Number of pages: 318
Subjects: Telegraph -- Operators' manuals
Notes: 1st edition pub. under title: An outline of commercial and railway telegraphy, in theory and practice. 1882.