'Practical Rules for making telegraphic signals'.
'Practical Rules for making telegraphic signals; with a description of the two-armed telegraph invented in 1804 by Lieutenant Col Pasley RE (Formerly L1965-56)
Cutty Sark will be closed on Sunday 27 April until 2pm due to the London Marathon. All other sites are open to visitors and spectators as normal, but please check road closures before you travel and allow extra time as the area will be busy. Parking at the National Maritime Museum is unavailable all day.