1667 Earl of Orrery Let. 14 July in (1742) 269 These ships came from the seaward,..which made the signal Beacon be fired.
1781 28–31 July Signal Beacons..fixed at all the distinguishing Places on the Sea Coast.
1856 E. K. Kane I. xxvi. 345 A large signal-beacon or cairn.
2003 28 May 3/3 The battery on his satellite telephone went dead, leaving him with only a signal beacon as a means of contact with his team.