Front-right View of M12 155mm Gun Motor Carriage
Here we see a M12 155mm Gun Motor Carriage, one of the heaviest self propelled guns to see service with the US Army during the Second World War. As this picture shows, the gun was mounted on top of the fuselage, and wasn't protected by any form of turret.
How to cite this article:
Rickard, J (4 October 2018), Front-right View of M12 155mm Gun Motor Carriage , http://www.historyofwar.org/Pictures/pictures_m12_155mm_GMC_front_right.html