Original Vintage Double Sided Flange Champion Spark Plug Metal Sign. This sign was made at the champion factory in the 1960 era. It was packed in a wood box and has been inside for 60 years. This is not a reproduction. It measures 18 inch by 12 inch.Made of a heavy gauge steel maybe. It has a two inch metal mounting flange. The item "Original Vintage Double Sided Flange Champion Spark Plug Metal Sign" is in sale since Saturday, January 25, 2020. This item is in the category "Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs". The seller is "random1212" and is located in Glendale, Arizona. This item can be shipped worldwide.