Telegraph
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
In the English telegraph act of 1863, the word is defined as "a wire or wires used for the purpose of telegraphic communication, with any casing, coating, tube or pipe inclosing the same, and any apparatus connected therewith for the purpose of telegraphic communication."
St 26 & 27 Viet c. 112, § 3.