Here is a weird thing what I has found. Is it the back end of a Tank Mark V*** or somesuch or is it a cunning fake?
It's "Nellie." Another of Churchill's ideas, in WWII. https://www.thinkdefence.co.uk/winston-nellie-trenching-machine/
"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.
Wow! Thanks, James. I still don't quite believe that it is not somehow related to a Tank Mark IX.