Matilda III medium tank Published 30.07.2017 at 1620 × 990 in English tank Mk IIa Matilda III English medium tank Mk IIa Matilda III, tank museum, Kubinka. Photo of the year 2006. Kubinka tank museum, Moscow region, Russia. English medium tank Mk IIa Matilda III, tank museum, Kubinka. Photo of the year 2006.