"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.
That is the original Lincoln No1 Machine with the Bullock Creeping Grip tracks. I've only ever seen drawings of it. Little Willie was later rebuilt from this vehicle with the newly-designed Tritton track system.
The Bullock tracks hung down when crossing voids like craters and didn't always re-engage properly, causing jamming, shedding and breaking. Also, they were far too short to cross trenches, something the French failed to appreciate with the CA and St Chamond (yes I know, Holt tracks on those). Steering was difficult with them flat to the ground too. Agricultural tractors spent most of their time going in straight lines, whereas tanks needed to manoeuvre. Tritton came up with the curved bottom track run to solve this, applied to Little Willie and subsequent models.
Thank you, citizens, for putting me straight on several counts. I neglected to look on Landships II, for which I ask forgiveness. I seem to be turning into Homer Simpson; if I come across something new, I have to forget something in order to make room for it. This could happen to you, one day.
I take consolation from the fact that we now have a better picture on Landships II.
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"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.
I'm not sure I've ever seen a photo pf Little Willie's dummy turret with the 'gun barrel', but certainly Dick Harley (in his drawings for Tankette) depicted it as a metal pipe bolted to the front. There is no reason for supposing otherwise as there is absolutely no evidence a real gun was ever mounted. It was, after all, a dummy turret. Below are those drawings plus a poor quality photo of Willie in the Foster's workshop in which the dummy turret is uncovered.