An August 1962 view of Westerham station from the buffers with the dock on the right and goods shed beyond. Note the ground shunt signal, centre foreground; ground signals were and are common across the network but semaphore types usually comprised a full disc. The type seen above, which was a Westinghouse design, comprised an almost semi-circular disc with a 'humped' edge across the bottom and was, at least when introduced, peculiar to the Southern Railway.
Photo by Ian Nolan from his Flickr photostream