Ключевые слова: 37 mm, air, aircraft, anti, antiaircraft, armed, army, artillery, asia, barrelled, battle, cannon, combat, defense, double, equipment, exhibition, explosive, fire, force, green, gun, heavy, history, machine, memorial, metal, military, museum, nature, obsolete, old, power, russia, soviet, steel, transport, transportation, travel, truck, union, vehicle, vietnam, vietnamese, vintage, violence, war, weapon, world, wwii,