SIGNALLING - An Elementary Reference Manual Covering the Morse Code and its Application to Aural and Visual Signalling, Operating Procedure for Visual, Telegraphic and Telephonic Communication and Fundamental Electrical Principles.
SIGNALLING - An Elementary Reference Manual Covering the Morse Code and its Application to Aural and Visual Signalling, Operating Procedure for Visual, Telegraphic and Telephonic Communication and Fundamental Electrical Principles.
ISBN:
Book Number: 60900
Mingay Publishing Company 1941 12mo, brown cloth wraps. 63pp. Very good. po name and station on title page. Contents includes, Signalling by the Morse Code, Visual Signals, Procedure, Elementary Electricity, The Telephone, Cables and Cable Jointing, Line Telephony Procedure, Telephone Exchange Operation.
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Price: $30.00