GARDNER IS ALUMINUM. 11 5/8 X 7". EWC IS CAST IRON. 12 X 5 3/4".  I THINK THIS MIGHT BE FROM ELECTRIC WHEEL COMPANY WHICH WAS OWNED BY FIRESTONE IN 1981. FIRESTONE SOLD IT IN 1983. THIS ITEM IS GUARANTEED TO BE OLD AND ORIGINAL. APPROXIMATE SHIPPING COST WILL BE $20 TO $25.