I spotted a derelict Ruston with a bore of around 8" on the Isle of Wight last month, photos of which I have put on Flickr
Apparently the engine and its adjacent pump, which are just a few yards from the sea on a private estate, was installed in the late 20s/early 30s to pump seawater up to a swimming pool which is about 200 yards away and about
60-feet above sea level. You'll see from the photos that it is derelict and that some kind soul appears to have attacked the barrel which now has a sizeable hole through which the piston crown can be seen. Notwithstanding its sad state it is nevertheless a magnificent addition to the landscape!Christopher W.