The RN adopted the 9,000 item flag signalling system compiled by CAPT Frederick Marryat, RN. The system was adapted from the French Navy manual. It was first demonstrated in Australia ...
Signalling
Australian Naval History on 12 October 1799
The Board of Admiralty issued the first signal book to the RN. ...
Australian Naval History on 25 July 1795
A new form of signalling called semaphore was introduced into the RN. The system was devised by the Reverend Lord George Murray. ...