Big brother of abovementioned 7,5 sm turret is 12 sm turret gun Bofors m/70 ERSTA. The system a liquid cooling system of the barrel (it's rate of fire is 25 rounds per min., so overheating can be a significant problem). On the top a camouflage fiberglass cap for masking and shielding of thermal radiation is seen. There were 18 batteries of 4 pieces of such guns in each in Sweden. Nowadays near to all of them are scrapped.
Next photo ->