Dowagiac was once a major furnace and stove-making center-there were at least three big makers there. I have a book, "Images of America, Dowagiac" with a number of wartime photos of military production at these plants. From the book:
" During WW2, Rudy produced ammunition boxes,gas cans,and gunsights for the M1 carbine. Premier (another furnace co.) manufactured ammunition boxes-565,000 wood boxes with metal liners by the end of the war. Dowagiac Steel Furnace made ammunition boxes,parts for Army trucks,boiler stacks,and water heaters for use on military bases"
Another famous old stove company, Round Oak, cast magnesium aircraft wheels during the war.
I have a number of these Rudy ammo cans,but no lids for them, unfortunately-my brother picked them up when an area of the plant was being cleared out. They had been used to hold bolts and such in the tool crib.