Tellís Tower is a curious little structure standing by the Marine Lake at the seaside resort of West Kirby on the Wirral Peninsula. The tower was erected during the 19th century in memory of a brave German Shepherd who saved his master from drowning on the night of January 22, 1871. When he saw that his master was in difficulty, Tell swam far out into the Irish Sea, grabbed him and dragged him all the way back to shore. Then, with his master safe home at Hilbre House, the brave dog lay down on the sand exhausted. And died.
In recognition of Tellís bravery a local clergyman, hearing the story, built a tower to the brave dog in the grounds of the house where he had lived. The tower became a lookout post during the Second World War and the house later became the home of Selwyn Lloyd, the then Speaker of the House of Commons. The property has long since been demolished, but the tower still stands although it is no longer accessible to the public.http://www.oldwirral.com/westkirby_tellstower.html
I've just been sent this. Looks like my little problem is solved