Also flags, lamps (with shutters on ships, lighthouses), telegraphs (https://en....

Cthulhu_ on April 6, 2023 | parent | context | favorite | on: Campanology

Also flags, lamps (with shutters on ships, lighthouses), telegraphs (https://en.wikipedia.org/wiki/Telegraphy), and beacons so that Gondor can call for aid.