I drove the 1964 Chevrolet C60 tank truck for our Conoco Bulk Plant. We had the Chevrolet dealership as well and ordered it new when I was working down there. It did not come with a fire extinguisher from the factory. Those items you added according to taste and what the law required at the time. Just like the triangles or reflectors and other equipment. You also mounted this equipment where you wanted it.
Jim