This set includes 6 superbly detailed 12mm/1:144 scale tanks and a decal sheet. The 105 mm Howitzer Motor Carriage M7 was an American self-propelled gun vehicle produced during World War II. It was given the official service name 105 mm Self Propelled Gun, Priest by the British Army due to the pulpit-like machine gun ring, and following on from the Bishop and the contemporary Deacon self-propelled guns.