'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)

Record Details

Item reference: SIG/D/7
Catalogue Section: Manuscript volumes acquired singly by the Museum
Level: ITEM
Date made: 1804-01-01 - ?; 1804
Credit: National Maritime Museum, Greenwich, London