HARLEY Porcelain Steel Advertising Sign. Approximately 20 inches x 12 inches. Beautiful sign with great shiny colors, has usage to it. This is a great sign for your collection. The item "HARLEY Porcelain Sign Vintage Motorcycle Advertising 20 Domed Collectible Biker" is in sale since Monday, July 20, 2020.This item is in the category "Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs". The seller is "oldgassigns" and is located in Woodland, California. This item can be shipped worldwide.