US 8" Field Howitzer Z-119
Often sold with the Z-120 Long Tom and 8" barrels in the same set so you could make either one of the two guns since the only difference was the barrel. The 8" barrel was much shorter than the 155mm gun barrel.
The models had a lot of moving parts. The guns could be displayed in transport or firing position. Some modellers would replace the whole 155mm gun assembly from the Long Tom kit and put it on the M40 self-propelled howitzer. They were the same gun in real life and the Z-120 model was much more detailed.