Handbook of Procedure (Wireless Telegraphy) (SS.209) March 1918

Handbook of Procedure (Wireless Telegraphy) (SS.209) was issued by the War Office during the First World War and is 40 pages in length. The publication date of this version is March 1918 and it superseded Handbook of Procedure (Wireless Telegraphy) - Provisional, 1914 and amendments issued in 1917.

Contents are

Chapter I - Communication in the Field

Chapter II - Symbols, Single Letter Procedure Signals, and Operating Signals

Chapter III - Calling-up and Answering: Procedure for Stepping-up

Chapter IV - Instructions for Dealing with Messages

Chapter V - Communication between Military Wireless Stations and H.M. Ships, and between Military Wireless Stations and Hired Transports on Military Service in Time of War or Emergency

Interestingly, one of Appendices deals with the "Eiffel Tower Time Signals"