That's a bad news.
Is there a way to find the name of this tank ?
And may be somebody can give me informations about the red and white stripes on the tank and the color and camo ?
(Not particularly about this tank but in average in 1918 )
Many thanks for your message Gwyn.
There is no evidence this tank had a name. The white and red stripes were only introduced after the action you are interested in and so would not have been carried. By early 1918, Mark IVs appear to have carried their serial numbers in three places, the old position at the rear on the right hand side, on the left hand front horn, and painted centrally at the top of the cab front.
I do not know of any evidence that A Battalion tanks painted their crew numbers (A1) on their tanks in this way in April 1918. They certainly didn't at Cambrai. I attach a photo of 'Antigone', which was lost at Cambrai. You will notice it has A3 painted in small letters on the front horn. However, this tank was A10 according to the records. It also wasn't in 3rd Section or 3rd Company so why it should be marked A3 is a bit of a mystery. It indicates that we do not quite understand A Battalion tank markings. Unfortunately, there are few photos of their tanks.
However, there is some evidence they did later adopt this system, when they were issued with Mark V tanks. See attached photo of Mark V marked A6. Now 6 is too high a number for a company in A Battalion, though it might be a section or a crew. So even this photo is inconclusive.
I suggested to you that the number 4086 might have been carried on the front horn on the left hand side, instead of the rear. We do see this in 1918 but we cannot be certain this was done with 4086. That tank would have been new and so may have still had the serials at the rear as you have shown. Copy those you see on the Mark IV preserved at Brussels. There are photos on the Landships II site.
This brings me to another point. I can see you want to depict Mitchell's tank, but how do you know it was 4086? Mitchell writing almost 20 years later says it was 4066 (though I think he was mistaken). So far as I know we don't know Mitchell's tank's number for certain, though 4086 is a candidate certainly.
Thank you Valeriy. What your documents show is that the cab roof flash was introduced from early March 1918, but the markings on the horns wasn't introduced until 29 April. The battle at Villers Bretonneux took place on 24 April, so the tank should have roof flashes but not horn flashes.