Beautiful Heavy porcelain early Car Washing Sign. We believe it to be Diamond Gas branded colors. Made of heavy steel and porcelain finish. Excellent accent piece for the auto collection. Love the overhead door signs such as these. Measures 12 x 72 inches. See our other listings for more great advertising. The item “Vintage Original Car Washing Porcelain Sign Diamond Gas Early Service Station Ad” is in sale since Thursday, August 11, 2016. This item is in the category “Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs”. The seller is “mancaveantiques” and is located in Fly Creek, New York. This item can be shipped to United States.