Navy Flashing Signals (letters and photographs). 1891. Printed correspondence (1861-91) between Admiral Colomb and the Admiralty re. his invention of night flashing signals for the Fleet, particularly payment thereof
Navy Flashing Signals (letters and photographs). 1891. Printed correspondence (1861-91) between Admiral Colomb and the Admiralty re. his invention of night flashing signals for the Fleet, particularly payment thereof. Also MS letters [copies] between Admiral Colomb, Rear Admiral Smart and Captain Cochrane, with photographs of apparatus for making night signals. [Number 53]