Marcel.... Im curious, do you have a link to the pictures of these in Hungary 1956 as you noted? reason being, I am thinking if they used these in Hungary they more than likely used SU-100's as well. Just wondering if any of those pictures show SU-100 in use as well. The SU-100 I built is a post war type(square front fenders,no rear hatch)and I am looking at post war actions by the Soviets using these--particuarly Hungary. I see that they used the T-34/85,JS-3 and now I see they used the JSU-152K. If you have a link to the phots, I would sure like to see them.