I've seen the last one before on the Getty Images website; the caption there reads "22nd June 1932: an army tank at Woolwich is removed by the Pickfords company". Obviously on its way to be scrapped...
There was also a presentation tank given to Farningham near Dartford. Been looking for info on it.
Have you tried contacting these nice people?
The Farningham & Eynsford Local History Society.
"Farningham was not given an official presentation tank after the First World War, but received a tank anyway because of the link with Walter Gordon Wilson, one of the pioneering designers of the tank. The Society has provided a photo of the Farningham tank."
"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.