DescriptionEastern end of Ynys Seiriol - Puffin Island - geograph.org.uk - 1467718.jpg
English: Eastern end of Ynys Seiriol / Puffin Island Showing the disused telegraph station which was one of a chain of eleven semaphore stations from Holyhead to Liverpool.
In the early 19th century messages about ships sighted off Holyhead could be sent to Liverpool Docks in a few minutes.
The semaphore system was replaced by an electric telegraph system in 1861.
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== {{int:filedesc}} == {{Information |description={{en|1=Eastern end of Ynys Seiriol / Puffin Island Showing the disused telegraph station which was one of a chain of eleven semaphore stations from Holyhead to Liverpool.
In the early 19th century message