Original World War 2 business industry trade magazine vintage ad for McQUARY NORRIS MANUFACTURING COMPANY of St. Louis, MO.  Speaking of Stamina.  American soldiers are famous the world over for their precision in movement, their accuracy in marksmanship but above all for their intestinal fortitude, their stamina. Vital parts for products used in planes, scout cars, trucks, tractors and ships.  Metal workers in iron, steel, aluminum, bronze, magnesium.   Old 1943 WW2 era propaganda magazine advertisement.