The origins of street names have always intrigued me, and here's one I didn't know about; Seamark Road in Monkton. The picture below is of a marine navigation aid that once stood alongside Seamark Road where Thanet Earth is now located. The column is of brick construction.
It's exact position can bee seen on the 1923 Ordnance Survey Map below, which is approximately 2¼ miles inland from the North Kent Coast but is at the highest land point (100 feet) at 90 degrees to the coast. You can see the exact location on current satellite imagery by viewing the map in Google Earth and using the transparency slider HERE
Do you know anything more about the picture?