Captured Soviet anti-aircraft machinegun on a Gaz(Ford)-AA truck at Raate Road.(1.-7.1.1940)
Quad Maxim 7.62mm ItKk/09-31 "Organ Machinegun" was usually used as a truck installed weapon because of weight. Finns captured over 80pcs during WW2 and guns were later modified(air cooling, muzzle booster etc). These were mainly used for defence at homefront. It wasn't uncommon that one of the four wasn't working when firing. sa-kuva.fi, undated.