Appears Excellent
Ordered in 1940, built by Foster's of Lincoln, the prototype ran for the first time in March 1941. It was modified to include among other things a change from the unsprung tracks for a torsion bar suspension and as the TOG 2* trialled successfully in May 1943.
From http://en.wikipedia.org/wiki/TOG2_%28tank%29
* TOG is the shortcut of the nickname "The Old Gang" (nickname of the Special Vehicle Development Committee)