These photos were submitted by KW. He writes: "Croft Castle in Herefordshire is one of the properties in the British National Trust. The public toilets are unremarkable, but next to the famous walled garden is a small alley marked "staff only" that leads to this marvelous Twyford's "Adamant" designed to fit in a corner. It must be over a hundred years old and is regularly flushed by a syphonic action cistern."
