New Old Stock Ford C-4 spark plugs made by Champion FoMoCo part number 18-12405-B. I believe these are correct for many 1920's 1930's and 1940's cars and trucks including Ford flathead V8 1932 and 1932 1933 1934 4 cylinder. You will receive what is pictured...4 plugs new in the original boxes. This particular set has silver or natural cadmium plating and RED ink stamps on the insulator. These also have steel plug wire ends. I assume that these are later production plugs? Nice addition to the nicest correct restoration.